Dissertations / Theses on the topic 'Organometallic compounds – Synthesis'

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1

Lawrence, Heather Bunting Elizabeth. "Organometallic compounds with non-linear optical properties." Thesis, University of Oxford, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.276835.

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2

Callahan, Ryan Patrick. "The synthesis of perfluorinated compounds by direct fluorination organometallic compounds and carboranes /." Access restricted to users with UT Austin EID Full text (PDF) from UMI/Dissertation Abstracts International, 2001. http://wwwlib.umi.com/cr/utexas/fullcit?p3036160.

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3

Frazier, Joy Faith. "Organo-iridium compounds : synthesis, characterization and reactivity /." Thesis, This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-08222009-040309/.

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4

Wallner, Olov. "Palladium-Catalyzed Synthesis and Transformations of Organometallic Compounds." Doctoral thesis, Stockholm : Dept. of Organic Chemistry, Stockholm University, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-804.

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5

Cloete, Jezreel. "Synthesis and applications of functionalized pyridinyl imine complexes of palladium." Thesis, University of the Western Cape, 2005. http://etd.uwc.ac.za/index.php?module=etd&amp.

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The synthesis and characterization of pyridinyl &alpha
-diimine Pd(II) complexes having a functionalized hydrocarbon attached to the imino nitrogen was performed. The catalytic activity of these complexes were then evaluated in the polymerization of ethylene and in the Heck coupling reaction of methyl acrylate with iodobenzene.

Unconjugated &beta
-diimine complexes of palladium were also synthesized and their activities towards ethylene polymerization and the Heck coupling of methyl acrylate and iodobenzene also evaluated and compared to that of the &alpha
-diimine complexes. Three of the &alpha
-diimine complexes synthesized showed activity towards ethylene polymerization, these being the complexes bearing the allyl, styrene and phenol functionalities. &omega
-Carboxylato complexes which were also synthesized showed no activity towards ethylene polymerization.

The polymer produced was found to be high density linear polyethylene with an average PDI of 2.54 with Mn values ranging between 3.42 and 6.90 x 10-5 and Mw values ranging between 6.05 and 17.6 x 10-5.

The complexes bearing the allyl, styrene and phenol functionalities, as well as the &omega
-carboxylato complexes active in the Heck coupling reactions of methyl acrylate with iodobenzene. None of the unconjugated &beta
-diimine complexes prepared showed any activity towards ethylene polymerization even at high Al/Pd ratios. The activity of these complexes towards the Heck arylation reaction was comparable to that of the &alpha
-diimine complexes showing similar activities.
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6

Hart, Suzanne L. "Synthesis and applications of chiral-at-titanium organometallic compounds." Thesis, University of Warwick, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.245941.

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7

Kou, Xiaodi. "Synthesis, characterization and reactivity of organic bismuth compounds." Fort Worth, Tex. : Texas Christian University, 2007. http://etd.tcu.edu/etdfiles/available/etd-07312007-125631/unrestricted/kou.pdf.

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8

Choi, Ka Ho. "Synthesis, characterization and properties of luminescent rigid-rod organometallic acetylide materials." HKBU Institutional Repository, 2001. http://repository.hkbu.edu.hk/etd_ra/360.

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9

Peatt, Anna C. (Anna Clare-Doreen) 1976. "New reaction media for organometallic chemistry." Monash University, School of Chemistry, 2003. http://arrow.monash.edu.au/hdl/1959.1/5829.

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10

Mock, Michael T. "Synthesis and reactivity of thioether-supported organoiron and low-valent iron complexes and cyanide-bridged binuclear complexes." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 282 p, 2008. http://proquest.umi.com/pqdweb?did=1481668291&sid=19&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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11

Kui, Chi-fai, and 居智輝. "Non-covalent weak interactions in group IV, PT(II) and AU(I) organometallic complexes: synthesis,structures and properties." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2005. http://hub.hku.hk/bib/B32021331.

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12

Pearson, Mark. "Organometallic reagents for catalytic cross-coupling." Thesis, University of Oxford, 1992. http://ora.ox.ac.uk/objects/uuid:c5eea9a0-8f0c-46bf-a1ea-28a40b79546d.

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Phosphine complexes of nickel and palladium provide the best catalysts for the homogeneous catalysed carbon-carbon bond forming reaction between an organometallic nucleophile and an organic electrophile. Use of a homochiral ligand on the catalyst can lead to stereoselectivity in the cross-coupling reaction, with high ee's of coupled product being obtained. The processes of selectivity in the transmetalation step of the catalytic cycle have not been elucidated and the initial aim of the project was to study these processes. Initial experiments using organotin derivatives as the organometallic nucleophile highlighted the problems of selectivity and the forcing conditions needed in the attempted transfer of a benzyl group from the tin to the palladium catalyst. The compounds [8- (dimethylamino)-1-naphthyl]methyldiphenyltin (60) and [2-((dimethylamino)methyl) phenyl]methyldiphenyltin (70) were prepared and their reactivity in the palladium catalysed cross-coupling with 2-furoyl chloride, to give 2-benzoylfuran, was investigated. These molecules were found to undergo facilitated transfer of a phenyl group compared to transfer from control molecules. The effect was tested and attributed to the internal nucleophilic attack at the tin atom by the lone pair on the nitrogen atom. The compound [2- ((dimethylamino)methyl)-3-trimethylsilylphenyl]methyldiphenyltin (79) was prepared to test the effects of steric buttressing within the molecule, but was found to be of the same order of magnitude of reactivity as (60) and (70). All three molecules showed a reactivity of at least an order of magnitude greater than control compounds. The effect did not prove applicable to the transfer of a benzyl group or in other coupling reactions. The effect of palladium ligation was tested and the ligand triphenyl arsine found to increase the rate of the coupling reaction. The two facilitating processes were found to work in a co-operative fashion, giving a rate enhancement of ca. one hundredfold over control reactions. The nickel catalysed cross-coupling of α-substituted sp3 hybridised Grignard reagents with allylic esters was attempted, but proved unsuccessful. Stoichiometric reactions with nickel complexes were also found to be unsatisfactory in yielding coupled products. The synthesis of α-substituted diorganozinc reagents was attempted, but furnished only homocoupled products. The reaction of dibenzylzinc with aldehydes was found to proceed in the absence of catalyst, highlighting the reactivity of a benzylzinc moiety.
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13

Bunge, Scott Daniel. "The molecular design of metal amides." Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/30990.

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14

Ortu, Fabrizio. "Synthesis of s-block complexes supported by sterically demanding N-based ligands." Thesis, University of Nottingham, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.713701.

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Despite the well-established tradition of organomagnesium reagents, lit-tIe attention was given to the heavier congeners, until very recently. Since the 1990s, researchers have intensified their efforts in the quest for sterically demanding ligand frameworks capable of preventing classic decomposition re› actions of Ae organometallics. Sterically demanding N -donors have become increasingly popular owing to their ability (i) to provide stable metal-donor interactions and (ii) to achieve kinetic stabilisation of the complex via steric crowding around the metal centre. This has led to reports which challenge the common knowledge of the Ae metals. Group 2 complexes have also found applications as stoichiometric reagents, catalysts and as precursors for MOCVD techniques. The work here discussed is aimed at investigating the use of aminopy› ridinate, amidinate and carbazolyl ligands in the stabilisation of novel Ae coordination compounds. Several synthetic procedures have been employed: (i) precursors for metathetical reactivity with Group 2 halides have been obtained from the reaction between the preligands and KH or K[N(SiMe3)2] (13, 12-18, 31-34); (ii) metathesis reactions between potassium salts and MgI2 or CaI2 afforded homoleptic (4-7), heteroleptic (35-38) and hetero› bimetallic compounds (8 and 9); (iii) organoelimination reactions between the preligands and (nBuhMg led to the isolation of homoleptic (4 and 5, 19-24) and heteroleptic magnesium complexes (25) ; (iv) reactions be› tween amidines and MeMgI afforded heteroleptic magnesium halides (28-30) and a rare homometallic magnesium inverse crown ether complex (26); (v) aminopyridines were employed in co-complexation reactions with nBuLi and (nBuhMg, affording the magnesiate complexes lOa and lOb; (vi) the metathesis reaction between the l,l-di-Grignard complex CH2(MgBr)2 and 1 produced the rare methylene bridged magnesium derivative 11. All the compounds herein reported were characterised via analytical and spectroscopic techniques. NMR characterisations in solution of amidinate Group 1 and Group 2 derivatives highlighted the presence of rotational bar› riers for some of these compounds. Moreover, several molecular structures of potassium (14 and 15, 31 and 33), magnesium (19, 21-24, 26-30, 35-38) , calcium (7) and heterobimetallic compounds (8, lOa and lOb) were obtained.
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15

Stolberg, Tonie Louis. "Synthesis and properties of bidentate coordination compounds of tin." Thesis, University of Oxford, 1991. http://ora.ox.ac.uk/objects/uuid:ff861007-1ff0-470e-8554-86749bc291a1.

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This Thesis describes the synthesis, structural characterization and properties of some tin(II) and tin(IV) compounds containing bidentate ligands. Chapter 1 describes the main spectroscopic techniques used in the identification of tin(II) compounds; infra-red, 119Sn Mössbauer and n.m.r spectroscopy are outlined, and relevant examples given. A comprehensive listing is given of the main spectroscopic and structural properties of known tin(]3) compounds. Chapter 2 describes the general synthetic methods employed for the formation of tin(II)-oxygen heterocyclic compounds. A range of catecholate and related complexes of tin(II) were synthesized and the role of the substituent investigated with regard to their physical properties, especially their solubilities. The use of 4-nitrocatechol leads to a soluble product, {Sn[O-4-NO2-C6H3O][OC4H8]}>sub>n, which enabled it to be studied spectroscopically and its solid state structure to be determined. The nature of the bonding in {Sn[O-4-NO2-C6H3O][OC4H8]}n was investigated using Extended Hiickel molecular orbital calculations. Chapter 3 describes the chemical reactivity of the novel, soluble, tin(II)-oxygen heterocycle {Sn[O-4-NO2-C6H3O][OC4H8]}n. Reaction with iodine gives SnI2 [O-4-NO2-C6H3O][OC4H8]2. Reaction with the Lewis base such as 1,2-diaminopropane gives Sn[NH2CH2CH(Me)H2N][O-4-NO2-C6H3O][OC4H8], whilst benzyltriethylammonium chloride gives {[Et3BzN][SnCl(O-4-NO2-C6H3O)]}n. The solid-state structure of the compound consists of polymeric chains of [SnCl(O-4-NO2-C6H3O)]- and associated [Et3BzN]+ cations. Reaction with BF3.Et2O gives the adduct F3B.Sn[O-4-NO2- C6H3O][OC4H8]. Reaction with W(CO)5thf gives {(OC)3W.Sn[(O-4-NO2- C6H3O)(OC4H8)]}2 in which the tungsten atoms are believed to be bound η6 to the aromatic rings. Reaction with bis(triphenylphosphine)platinum-ethylene or tris(triphenylphosphine)platinum gives {PtH[PPh3]3}{[μ2-O][μ2-OH][Sn(O-4-NO2- C6H3O)]2}, the anion containing tin(II) and tin(IV) centres. Reaction with RhCl[CNC8H9]3 gives {RhCl[CNC8H9]32-Sn(O-4-NO2-C6H3O)]}2. Reaction with Ph3PAuCl gives the cluster Au4(PPh3)42-SnCl3)2, which is the first known example of a compound containing a μ2-SnX3 fragment. In comparison with SnCl2, {Sn[O-4-NO2- C6H3O][OC4H8]}n only weakly inserts into the platinum-chlorine bonds of PtCl2(dppe). Two molar equivalents of SnCl2 reacts with PtCl2(dppe) to give Pt(dppe)(SnCl3)2. Addition of a further equivalent of SnCl2 in the presence of tetraethylammonium chloride gives [Et4N][Pt(dppe)(SnCl3)3]. The platinum centre in this ion has a distorted trigonal bipyramidal geometry. Chapter 4 describes the synthesis of a number of tin(II)-sulphur heterocycles. The reaction between Sn[SC6H4S] and TMEDA gives a soluble adduct, Sn[SC6H4S]TMEDA. A number of tin(II)-nitogen heterocycles were also synthesized. Their intense colours and their instability towards air oxidation indicated that they were monomeric in the solid-state. Chapter 5 outlines the basis for non-linear optical properties, especially their SHG effects. A wide range of tris(catecholato)tin(IV) compounds were synthesized and tested for SHG activity. A number were found to have a significant SHG effect, especially [(O-4- NO,sub>2-C6H3O)3Sn][NHEt3]2, which has an SHG effect 1.33 x urea.
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16

Joshi, Kiran. "Synthesis, characterisation and reactivity of phosphide and methylidene complexes of iridium." Thesis, University of British Columbia, 1990. http://hdl.handle.net/2429/30661.

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The iridium(III) methyl diarylphosphide complexes, Ir(CH₃PR₂-[N(SiMe₂CH₂PPh₂)₂] (2a: R = phenyl, 2b: R = meta-tolyl) had been prepared previous to this work. The iridium(III) dimethylphosphide complex, Ir(CH₃)PMe₂-[N(SiMe₂CH₂PPh₂)₂], 2c, is readily prepared in situ by transmetallation of the Ir(CH₃)I[N(SiMe₂CH₂PPh₂)₂] with KPMe₂ at -30°C. The synthesis of the phenylphosphide complex Ir(CH₃)PHPh[N(SiMe₂CH₂PPh₂)₂], 2d, involves deprotonation of the six-coordinate iridium(III) phenylphosphine complex, Ir(CH₃)I-(PH₂Ph)[N(SiMe₂CH₂PPh₂)₂], with KO¹Bu. Thermolysis of 2a and 2b yields the six-coordinate iridium(III) cyclometallated hydride complexes fac-Ir(ɳ²-CH₂PR₂)H[N(SiMe₂CH₂PPh₂)₂], 3a and 3b. The dimethylphosphide complex 2c undergoes the same rearrangement to afford 3c but more rapidly. Thermolysis of 3a-3c yields the square planar iridium(I) phosphine complexes of the formula, Ir(PCH₃R₂)[N(SiMe₂CH₂PPh₂)₂], 4a-4c. Some of the intermediates proposed in the thermolysis of 2a are synthesised independently by the reaction of iridium methylidene complex, Ir=CH₂[N(SiMe₂CH₂PPh₂)₂]. 10, with PHPh₂. The complex fac-Ir(ɳ²-CHPhPMe₂)H[N(SiMe₂CH₂PPh₂)₂] is generated from the reaction of Ir(CH₂Ph)Br[N(SiMe₂CH₂PPh₂)₂] with KPMe₂ without intermediacy of the corresponding phosphide complex. The photolysis of 2a-2c also yields species 4a-4c; however, no intermediacy of the cyclometallated hydride complexes 3a-3c is observed during this transformation. Upon thermolysis of the phenylphosphide complex 2d, only the corresponding iridium(I) phosphine complex, Ir(PHCH3Ph)[N(SiMe2CH2PPh2)2], 4d, is obtained, which is also the photolysis product of 2d. Ir(CH₃)PPh₂[N(SiMe₂CH₂PPh₂)₂], 2a, reacts at -78°C with dimethyl-acetylenedicarboxylate to yield an octahedral iridium(III) complex in which the alkyne has bridged between the phosphide ligand and the phosphine group of the chelating ligand. In addition, one of the phenyl groups from the chelating phosphine has migrated to the metal. On the other hand, Ir(CH₃)PMe₂[N(SiMe₂CH₂PPh₂)₂], 2c, reacts with the same alkyne to yield a product in which the alkyne has bridged between the phosphide group and the iridium centre. The reaction of 2a with diphenylacetylene affords Ir(PhC≡CPh)[N(SiMe₂CH₂PPh₂)₂] and free methyl-diphenylphosphine. Complex 2a reacts with terminal alkynes (RC≡CH; R = H, Ph, ¹Bu) to yield acetylide complexes of formula Ir(CH₃)PHPh₂(C≡CR)[N(SiMe₂CH₂PPh₂)₂]- The methylidene complex, lr=CH₂[N(SiMe₂CH₂PPh₂)₂], 10, prepared by the reaction of Ir(CH₃)I[N(SiMe₂CH₂PPh₂)₂] with KO¹Bu, reacts with phosphines PHR₂ (R = Ph, ¹Bu) to afford the cyclometallated hydride complexes, fac-Ir(ɳ²-CH₂PR₂)H[N(SiMe₂CH₂PPh₂)₂], via a five-coordinate methylidene phosphine intermediate. The reaction of 10 with PH₂Ph yields similar cyclometallated hydride product, but in this case the five-coordinate intermediate is not observed. The methylidene complex 10 reacts with the electrophiles MeI and AlMe₃ to yield Ir(ɳ²-C₂H₄)H(I)[N(SiMe₂CH₂PPh₂)₂] and Ir((µ-AlMe₂)H[N(SiMe₂CH₂PPh₂)₂], respectively. Reaction of 10 with HC≡CH affords an ɳ³˗allyl acetylide complex Ir(ɳ³-C₃H₅)(C≡CH)[N(SiMe₂CH₂PPh₂)₂]. A trimethylenemethane complex, fac-Ir{ɳ⁴-C(CH⁴₂)₃}[N(SiMe₂CH₂PPh₂)₂], is obtained readily upon exposing 10 to 1,2-propadiene. The reaction of 10 with 1,3-butadiene affords a pentenyl product, Ir(σ-ɳ³-C₅H₈)[N(SiMe₂CH₂PPh₂)₂]. In previous studies, the iridium(I) ɳ²-cyclooctene species, Ir(ɳ²-C₈H₁₄)-[N(SiMe₂CH₂PPh₂)₂], 25, has served as a useful starting material in the preparation of a number of iridium(I) and iridium(III) amide complexes. This complex is thermally stable, but upon photolysis, it yields Ir(H)₂[N(SiMe₂CH₂PPh₂)₂] and a mixture (2:1) of free 1,3-and 1,5-cyclooctadiene. This dehydrogenation process proceeds through ɳ³-allyl hydride intermediate, Ir(ɳ³-C₈H₁₃)H[N(SiMe₂CH₂PPh₂)₂]- The cyclo-octene ligand in 25 can be replaced by 1,3-butadiene and. 1,2-propadiene. The products obtained from these reactions are Ir(ɳ⁴-C₄H₆)[N(SiMe₂CH₂PPh₂)₂] and Ir(ɳ²-C₃H₄)[N(SiMe₂CH₂PPh₂)₂]. respectively. The reaction of 25 with AlMe₃ affords Ir(µ-AlMe₂)Me[N(SiMe₂CH₂PPh₂)₂].
Science, Faculty of
Chemistry, Department of
Graduate
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17

Low, Kam-hung, and 魯錦鴻. "Synthesis, structural characterization and applications of homoleptic organosulfur and organoselenium metal polymers." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2009. http://hub.hku.hk/bib/B43703859.

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18

黃維揚 and Wai-yeung Wong. "The chemistry of triosmium alkylidyne carbonyl clusters." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1995. http://hub.hku.hk/bib/B31234537.

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19

Brassington, David Steven. "Synthesis and characterisation of organometallic compounds of B, Mn and Re." Thesis, Bangor University, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.273666.

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20

Nozari, Ali-Reza. "Synthesis and characterisation of organometallic and organic compounds towards novel applications." Thesis, University of Cambridge, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.615960.

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21

Pang, Ka Chuen. "Hydrothermal synthesis of chiral metal-organic frameworks and photo-chromic materials /." View abstract or full-text, 2009. http://library.ust.hk/cgi/db/thesis.pl?CHEM%202009%20PANG.

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22

Saleh, Liban Mohamoud Ali. "Rare earth metal boryl and gallyl compounds : synthesis and reactivity." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:b511fe23-8b79-47b5-9ac6-dcfd52c58239.

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This Thesis describes the syntheses, characterisation and reactivity of rare earth metal boryl and gallyl compounds. Experimental and computational studies were performed to investigate the structure and bonding in these compounds. Chapter 1 introduces key metal-boryl and metal-gallyl compounds of the s, p, d and f-blocks via literature review. Chapter 2 describes the syntheses, structures and bonding analyses of rare earth metal boryl compounds. A short introduction to rare earth metal cations is given. Chapter 3 describes the syntheses, structures and bonding analyses of rare earth metal gallyl compounds. The preparation of a new class of rare earth metal cations will also be reported. A short introduction to rare earth metal amidinates is given. Chapter 4 presents reactivity studies of the rare earth metal gallyl compounds described in Chapter 3. To facilitate a direct structure and reactivity comparison, the corresponding boryl compounds were also synthesised. The results of a comprehensive DFT computational study to investigate the structure and bonding in these compounds are also presented. A short introduction to metalelement and metalmetal bond reactivity is given. Chapter 5 presents full experimental procedures and characterising data for the new compounds reported. Appendix CD Appendix contains .cif files for all new crystallographically characterised compounds described.
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23

Gitlits, Alexander 1975. "Synthesis and structural survey of novel rare earth aryloxide and pyrazolate complexes." Monash University, Dept. of Chemistry, 2001. http://arrow.monash.edu.au/hdl/1959.1/8996.

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24

Low, Kam-hung. "Synthesis, structural characterization and applications of homoleptic organosulfur and organoselenium metal polymers." Click to view the E-thesis via HKUTO, 2009. http://sunzi.lib.hku.hk/hkuto/record/B43703859.

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25

Phelps, Jennifer. "Synthesis of homoleptic PT(0) acceptor phosphine complexes." Laramie, Wyo. : University of Wyoming, 2008. http://proquest.umi.com/pqdweb?did=1594481221&sid=1&Fmt=2&clientId=18949&RQT=309&VName=PQD.

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26

Wong, Ka-Leung. "Synthesis, characterization, and photophysical studies of organic-lanthanide complexes." Click to view the E-thesis via HKUTO, 2006. http://sunzi.lib.hku.hk/hkuto/record/B36875351.

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27

Poon, Suk Yue. "Synthesis, characterization and photophysics of alkynyl-derived inorganic and organometallic materials comprising group 13,14 and 16 elements." HKBU Institutional Repository, 2005. http://repository.hkbu.edu.hk/etd_ra/662.

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28

李詠文 and Wing-man Lee. "Synthesis, photophysics and photochemistry of mono- and polynuclear complexes of Ruthenium (II) containing crown ether pendants, redoxactive moieties, and organometallic fragments." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1996. http://hub.hku.hk/bib/B31234975.

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29

Abdalhadi, Saifaldeen Muwafag. "Synthesis and study of new organic and organometallic compounds with photovoltaic applications." Thesis, University of Glasgow, 2017. http://theses.gla.ac.uk/8365/.

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This thesis describes the synthesis and characterisation of novel organic and organometallic materials with potential optoelectronic application. Chapter one provides a general introduction about the different types of solar cells and an overview of the working principle of two types of solar cells, DSSCs and BHJs, including examples of some molecular designs of the best performing dyes. Chapter two describes the successful synthesis and characterization of two organometallic molecules based on the porphyrin moiety (PorTh and PorFu). These dyes were employed to fabricate DSSCs devices, reporting a power converting efficiency of 4.2% as the best result. The same chapter reports the synthesis and characterisation of another metalloporphyrin dye (EDOT-Por), designed to be used as a sensitiser in DSSCs and synthesised by screening three types of one-pot C-H activation reaction protocols. Chapter three describes the synthesis and characterization of four novel ferrocene derivatives which were designed using a donor-π-acceptor architecture for DSSCs. The main advantage of these compounds would be the easy two-step synthesis, starting from cheap starting materials. The first part of chapter four describes the synthesis and characterization of a series of porphyrin derivatives containing a central transition metal ion (Zn (II), Pd (II), Ni (II) and Cu (II)), which were used as electron donor compounds in BHJs. The Zn-based porphyrin was chosen for photovoltaic device and blended with PC61BM, used as an acceptor, to give a power converting efficiency of 0.28%. The second part of this chapter describes the synthesis of a novel phthalocyanine derivative, which can be used as a donor unit in BHJs. Unfortunately, due to its very low solubility in most organic solvents, this compound could not be characterised. Chapter five describes the synthesis and characterisation of a family of organic conjugated polymers and the small molecules based on thieno[3,4-b]pyrazine (TP) unit, to be used as donor materials in BHJs. All polymers exhibit low solubility in most common organic solvents. The small molecules, however, were tested in as donor materials BHJs, showing low VOC ranging between 0.4 and 0.6 V, with the most performing device exhibiting a PCE of 0.62%. Chapter six describes the synthesis of new TTF derivatives designed to be used as a donor materials in BHJs. Different synthetic pathways were used to prepare these compounds, unfortunately it was not possible to synthesise the target materials.
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30

Cordiner, Richard L. "Synthesis, structure and electrochemistry of organometallic compounds bearing C(_n)N ligands." Thesis, Durham University, 2005. http://etheses.dur.ac.uk/3007/.

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In this thesis, the synthesis of the organic cyanoacetylenes NCC≡CC(_6)H(_5) and NCC≡CC(_6)H(_4)-4-NMc(_2) and the metal cyanoacetylides Ru(C≡CC≡N)(PPh(_3))(_2)Cp, Ru(C≡CC≡N)(dppe)Cp* and Fe(C≡CC≡N)(dppe)Cp is presented and their coordination chemistry is explored. The structure and electrochemical behaviour of these novel cyano-carbon complexes is investigated and spectro-electrochemical methods are used to investigate the electronic structure of the cyanoacetylide compounds. In addition, in order to gain a greater understanding of the metal/ligand bonding interaction in these systems, the synthesis, structure and electrochemical behaviour of a series of metal nitriles [Ru(N≡CC(_6)H(_4)X)(PPh(_3))(_2)Cp][PF(_6)] (X = NO(_2), NMe(_2), CN) and [M(N≡CC(_6)H(_4)X)L(_2)Cp'][PF(_6)] (M = Ru, L = PPh(_3), Cp' = Cp; M = Ru, L2 = dppe, Cp' = Cp*; M = Fe, L(_2) = dppe, Cp' = Cp) were investigated, as were the complexes [{Ru(PPh(-3))(_2)Cp}(_2){μ-M(CN)(_4)}] (M = Ni, Pd, Pt) and [{Ru(dppe)Cp*}(_2){ μ - M(CN)(_4)}] (M = Ni, Pd , Pt), which feature a group 10 tetracyanometallate as a bridging moiety.
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31

Kui, Chi-fai. "Non-covalent weak interactions in group IV, PT(II) and AU(I) organometallic complexes synthesis, structures and properties /." Click to view the E-thesis via HKUTO, 2005. http://sunzi.lib.hku.hk/hkuto/record/B32021331.

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32

Leech, Matthew Christopher. "Transition metal cyaphides : synthesis, reactivity, and electrochemistry." Thesis, University of Sussex, 2019. http://sro.sussex.ac.uk/id/eprint/82053/.

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33

McBurnett, Brian Gordon. "Synthesis, structure, and reactivity of some heavier main group compounds /." Digital version accessible at:, 1998. http://wwwlib.umi.com/cr/utexas/main.

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34

Lev, Daniel Abraham. "Group 8 and 9 half sandwich complexes of N-heterocyclic phosphines : synthesis, reactivity, and catalysis /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2004. http://wwwlib.umi.com/cr/ucsd/fullcit?p3158465.

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35

Wong, Ka-Leung, and 黃嘉良. "Synthesis, characterization, and photophysical studies of organic-lanthanide complexes." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2006. http://hub.hku.hk/bib/B36875351.

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36

Mapolie, Selwyn Frank. "The synthesis and reactivity of binuclear μ-hydrocarbyl complexes of some transition metals." Doctoral thesis, University of Cape Town, 1988. http://hdl.handle.net/11427/22208.

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The new μ-(l,n)-alkanediyl compounds [(ƞ⁵-C₅R₄Me)Fe(CO)₂ ]₂{μ-(CH₂)n}, (R = H, n = 3 -10 and R =Me, n =3 - 6), [Mn(CO)₅]₂{μ-(CH₂)n} (M = Mn, n = 4-6 and M = Re, n= 3 and 4) have been prepared using essentially two synthetic routes. Thus the iron compounds were synthesized by the reaction of Na[(ƞ⁵-C₅R₄Me)Fe(CO)₂ ] with the appropriate dibromoalkane. The manganese and rhenium compounds on the other hand, were prepared by the decarbonylation of the corresponding diacyl compounds of the type, [M(CO)₅]₂{μ-CO(CH₂)nCO} (M = Mn or Re). These diacyl species in turn were synthesized by the reaction of Na[M(CO)s] with diacyl chlorides. All the new compounds have been fully characterized by microanalysis, infrared, ¹H and ¹³C nmr spectroscopy. The mass spectra of the compounds have been investigated and the fragmentation patterns are discussed and compared with other known polymethylene compounds. An extensive investigation into the reactivity of the new alkanediyl compounds has been carried out. Thus for example the reactivity of the compounds [CpFe(CO)₂]₂{μ-(CH₂)n} with nucleophiles such as tertiary phosphines and isocyanides, yield diacyl compounds of the type [CpFe(CO)L]₂{μ-CO(CH₂)nCO} (Cp = C₅H₄Me or C₅Me₅) and (L = tertiary phosphine or isocyanide). Similar ligand induced CO insertion reactions were observed for the manganese and rhenium alkanediyl compounds. The products from these reactions were characterized using the analytical techniques mentioned earlier. The reactions are discussed and compared with those of mononuclear alkyl compounds of manganese, rhenium and iron. The reactions of some polymethylene bridged compounds with synthesis gas have also been investigated. This reaction is of importance in view of the fact that polymethylene bridged compounds have been implicated in a number of catalytic processes e.g the Fischer- Tropsch reaction. The reaction with synthesis gas was found to yield bifunctional alcohols of the type HO(CH₂)nOH. In a separate study, the binuclear μ-phthaloyl compounds of manganese, rhenium,iron,molybdenum,cobalt and rhodium were prepared and characterized. The phthaloyl compounds of manganese, rhenium and iron were decarbonylated to form the corresponding μ-phenylene compounds. The reactions of some of these compounds with nucleophiles and electrophiles have been studied and the results compared with that of the corresponding mononuclear benzoyl and phenyl compounds.
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37

林立基 and Lap-kay Wilson Lam. "Organometallic reactions involving long chain fatty acid esters." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1987. http://hub.hku.hk/bib/B31231196.

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38

Xiao, Jiajia. "Study of factors affecting the synthesis of carbon nanotubes by spray pyrolysis." To access this resource online via ProQuest Dissertations and Theses @ UTEP, 2007. http://0-proquest.umi.com.lib.utep.edu/login?COPT=REJTPTU0YmImSU5UPTAmVkVSPTI=&clientId=2515.

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39

Bradley, Mark. "The synthesis of alkaline earth complexes using sterically-demanding multidentate amido ligands." Thesis, University of Nottingham, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.718678.

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Despite the well-established use of organomagnesium reagents, research into the chemistry of the alkaline earth metals has received an increase in popularity over the last two decades, largely due to their applications as reagents and catalysts. Recently, sterically-demanding A-donor ligands have become more popular because of their ability to provide stable metal-donor interactions and achieve kinetic stabilisation of the complex by crowding the metal centre. Furthermore, the isolation of subvalent magnesium and calcium complexes which challenged established knowledge of the metals prompted further investigations into their stabilisation in low oxidation states.
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40

Schauer, Philip A. "Organometallic synthons for highly conjugated redox-active materials." University of Western Australia. School of Biomedical, Biomolecular and Chemical Sciences, 2009. http://theses.library.uwa.edu.au/adt-WU2009.0166.

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[Truncated abstract] This thesis describes various synthetic approaches toward the synthesis of highly conjugated complexes incorporating multiple transition metal centres. Particular attention is given to the synthesis of mononuclear complexes that allow for the facile assembly of discrete oligo- and poly-nuclear complexes in a controlled, stepwise fashion. Conjugated multi-metallic materials are of interest on account of their unique photophysical and electronic properties, with a particular emphasis on elucidating the nature of intramolecular communication between multiple metal centres. Chapter 1 provides a survey of these topics and current research efforts in the field. Chapter 2 describes the synthesis of Group-VIII allenylidene complexes incorporating a terminal bipyridyl moiety that provides a site for further coordination. The new compound 9-hydroxy-9-ethynyl-4,5-diazafluorene was synthesised, and reaction of this proligand with a coordinatively unsaturated metal fragment yields the allenylidene complexes [MCl(PnP)2=C=C=(4,5-diazafluoren-9-yl)]PF6 (M = Ru, PnP = dppm, dppe, dmpe; M = Os, PnP = dppm) and [CpRu(dppe)=C=C=(4,5-diazafluoren- 9-yl)]PF6. The dmpe-ligated complex is particularly susceptible to decomposition, though it was possible to obtain partial spectroscopic characterisation in addition to a single-crystal X-ray structural determination. The remaining allenylidene complexes are stable compounds readily characterised by standard spectroscopic and electrochemical means, with the bis(diphosphine) complexes characterised by single crystal X-ray structural determinations. ... Reactions of the proligand with [RuCl(PnP)2]+ (PnP = dppm, dppe) led to the isolation of a product spectroscopically consistent with the formation of the target cationic allenylidene complexes, though the complexes were not readily purified and the identity of the accompanying anion was not elucidated. The new compound 4-hydroxy-4- ethynyl-cyclopentadithiophene was also prepared, though the compound was found to be highly unstable and susceptible to rapid decomposition. The derived allenylidene complexes [RuCl(PnP)2=C=C=(4-cyclopentadithiophene)]PF6 (PnP = dppm, dppe) were isolated in a pure form and the complexes stable toward spontaneous decomposition. The thienyl-derived allenylidene complexes were characterised by spectroscopic and electrochemical techniques, with a single-crystal X-ray structural determination undertaken for [RuCl(dppm)2=C=C=(4-cyclopentaditiophene)]PF6. Electrochemical properties are significantly different between the complexes, and also show significant variation between electrodes and solvents. The terminal thienyl substituents are electroactive and show one or two oxidation processes consistent with oligomerisation of the thienyl moiety in dichloromethane solvent, and in acetonitrile solvent cyclic voltammograms are consistent with the deposition of an electroactive film on the electrode surface. The electro-polymerisation of the thienylallenylidene complexes offers a promising new route toward multi-metallic allenylidene complexes.
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41

Hallam, Malcolm Francis. "Synthetic and spectroscopic studies on heterometallic clusters of platinum." Thesis, University of Oxford, 1986. http://ora.ox.ac.uk/objects/uuid:a74b7c1b-4201-46cf-89aa-92d3f7160a9a.

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This Thesis describes the synthesis and structural characterisation of a range of heterometallic cluster compounds of platinum. Chapter 1 reviews the current knowledge in this area and gives examples of the kinds of cluster compounds which have been characterised, with some emphasis on their mode of synthesis and their structural and spectroscopic characterisation. The structures of the cluster compounds are rationalised in terms of the triangular Pt3 unit which dominates the cluster chemistry of platinum. The bonding in the simplest triplatinum cluster compounds is analysed and is used as a basis for understanding the interconversion of platinum cluster compounds and the formation of heterometallic platinum-gold cluster compounds. Chapter 2 describes the synthesis and characterisation of the homometallic platinum cluster compounds which are convenient precursors for the formation of heterometallic cluster compounds. A general synthetic route to the platinum carbonyl phosphine clusters has been developed and the exchange of bridging CO and S02 ligands in this type of cluster was investigated. The synthesis of a new type of anionic 44 electron triplatinum cluster, [Pt3(μ-S02)2(μ-X)(PR3)3]¯ described. The syntheses of heterometallic clusters from the trianguloplatinum cluster compounds are reported in Chapter 3. The use of [AuPR3] as a capping fragment generates clusters with a tetrahedral Pt3Au framework. The synthesis and characterisation of two novel "sandwich" compounds are reported in which a gold or copper atom is coordinated between two parallel triplatinum units. A full single crystal X-ray crystallographic study has been carried out on each of these compounds and their geometric parameters contrasted. Chapter 4 describes the reactions of the platinum-sulphide complex [Pt2(μ-S)(CO)(PPh3)3]. This compound is found to be chemically robust. The pt-Pt bond has so far proved resistant to insertion reactions and only the ligands trans to the sulphur atom are readily exchanged. The bridging sulphido- group appears to have an extensive coordination chemistry which has lead to the synthesis of some heterometallic complexes. This property does not, as yet, provide a route into cluster formation but instead produces complexes which are aggregates of metal atoms. The application of 31P and 195Pt NMR studies to the characterisation of platinum cluster compounds is discussed in Chapter 5. The solution NMR spectra of compounds synthesised in the course of this research are described and analysed in detail. A large amount of NMR data for homometallic triplatinum clusters has been gathered and it has been possible to characterise a number of such compounds having relatively low symmetry. The heterometallic complexes described in Chapters 3 and 4 have also been characterised using NMR spectroscopy by considering the extra MPR3 fragments as perturbations on the spectra of the compounds from which they were derived. Analysis of the complex spectra obtained for such compounds was greatly assisted by the use of computer simulation techniques.
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42

Moreno, Debra Ann. "Design, synthesis, and characterization of monomeric group 2 element Bis(alkoxide) compounds ; Part II, Synthesis and characterization of some group 2 element imidophosphonate compounds." Diss., Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/30267.

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43

Lee, Wing-man. "Synthesis, photophysics and photochemistry of mono- and polynuclear complexes of Ruthenium (II) containing crown ether pendants, redox active moieties, and organometallic fragments /." Hong Kong : University of Hong Kong, 1996. http://sunzi.lib.hku.hk/hkuto/record.jsp?B18061734.

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44

Li, Jun. "Synthesis, characterization and application studies of ionic platinum(II) complexes." HKBU Institutional Repository, 2017. https://repository.hkbu.edu.hk/etd_oa/394.

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This thesis is dedicated to developing novel charged Pt(II) complexes and exploring their applications in electroluminescence, bio-imaging and the preparation of soft salts. At the beginning, a brief introduction about the development of ionic transition metal complexes and an overview of their applications in electroluminescence, bio-imaging and soft salts are presented. In chapter 2, a series of anionic Pt(II) complexes were successfully synthesized and fully characterized for their application in electroluminescence with relatively small current density. All the complexes show highly intense emission from blue to red in the solid state but is almost non-emissive in solution. The obtained single crystal data show that the anionic Pt(II) complexes exhibit very large Pt-Pt separation of over 10 Å in the crystal packings due to the bulky counterion [N(n-C4H9)4]+. The strong interactions between adjacent [Pt(C^N)(CN)2]- is thus absent in the solid state and this is considered as the main reason for the different properties in solution and solid state of these anionic complexes. This kind of Pt(II) anionic complexes has also found application in electroluminescence with relatively small current density. A series of novel water-soluble cationic Pt(II) complexes have also been designed and synthesized in chapter 3. Their photophysical properties in both water solution and solid state were investigated. Some of the cationic Pt(II) complexes have been selected to be applied in cell imaging in both live human hepatoma cells (BEL-7402) and mouse embryonic fibroblast (MEF) cells. The results show that these complexes have a much higher cellular uptake in BEL-7402 cells (tumor cells) than in MEF cells (normal cells), indicating these complexes are promising probes for tumor cell imaging. All of the cationic Pt(II) complexes show very low cytotoxicity at low concentration and the cell viability is still assessed to be high even when the concentration increases to 10 μM. The localization of the complexes turned out to be in the cytoplasm and accumulate near the cell nucleus. Attempts have been made to obtain efficient deep-red or NIR Pt(II) complexes by taking advantages of the Pt-Pt interactions in chapter 4. Two Pt(II) soft salts, SS1 and SS2 with bright emission at 674 and 718 nm, have been successfully prepared and characterized. The crystal packing shows a short separation between the two Pt atoms of 3.476 Å and the average distance of two planes of the cyclometalated ligands is 3.360 Å, indicating the existence of strong intramolecular Pt-Pt and π-π interactions. It is the first examples of Pt(II) soft salts bearing strong Pt-Pt interactions and π-π stacking and this has opened a versatile and facile avenue to prepare efficient NIR Pt(II) emitters by taking advantages of the Pt-Pt interactions. SS2 shows different emission in PEG with different concentration and excitation wavelength, indicating their potential application in optical data storage. The electrochromic properties of SS2 have also been investigated considering that the soft salt consists of ions with opposite charges, which suggests the soft salt could be promising candidate for electrochromic and optoelectronic material. The Pt(II) soft salt has also been used as NIR in-vivo imaging probe. Chapters presents the concluding remarks and points out some further work that could be done in the future. The experimental details are displayed in Chapter 6.
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45

Samanamu, Christian. "Studies on the synthesis of main group and late transition element frameworks." [Fort Worth, Tex.] : Texas Christian University, 2009. http://etd.tcu.edu/etdfiles/available/etd-04232009-112540/unrestricted/Samanamu.pdf.

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46

Shaffer, Andrew Ronald. "Synthesis, reactivity, and catalysis of 3-iminophosphine palladium complexes /." Connect to full text in OhioLINK ETD Center, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1248288981.

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Thesis (Ph. D.)--University of Toledo, 2009.
Typescript. "Submitted as partial fulfillment of the requirements for the Doctor of Philosophy in Chemistry." Includes bibliographical references (leaves 183-217).
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47

Curtis, H. "Synthesis, characterisation and reactivity of transition metal carbido-carbonyl cluster and other organometallic compounds." Thesis, University of Cambridge, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.377825.

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48

Guo, Jianping. "Synthesis, structure and characterization of long distance electrostatic force and hydrogen bond supramolecular polymers synthesis, structure and characterization of bis[2,4-di(pyridyl)-1,3,5-triazapenta-dienato] metal complexes." HKBU Institutional Repository, 2004. http://repository.hkbu.edu.hk/etd_ra/506.

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49

Meyer, Annalene. "The synthesis of α-alkoxy and α-aminostannanes as precursors to Novel Chromium Fischer Carbenes." Thesis, Rhodes University, 2012. http://hdl.handle.net/10962/d1005036.

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The present study involves the use of main group organometallics: organostannanes and organolithiums as precursors to chromium Fischer carbene complexes. Fischer carbenes are well stabilized by the π‐donor substituents such as alkoxy and amino groups and low oxidation state metals such as Group 6 (Chromium, Molybdenum or Tungsten). Carbenes are an important intermediate in the synthesis of a range of compounds through cyclopropanations, insertions, coupling and photochemical reactions. Synthesis and successful characterisation of three α‐alkoxystannanes was achieved via nucleophilic addition of tributylstannyllithium to the respective aldehydes, followed by an immediate MOM protection of the resulting alcohol. Six α‐aminostanannes were synthesised, consisting of N‐BOC, N‐acetyl and N‐ethyl derivatives of pyrrolidine and piperidine, via α‐lithiation and subsequent tinlithium transmetallation in the presence of TMEDA. The ¹³C NMR analysis highlighted an interesting phenomenon of tin‐carbon coupling that revealed unique structural information of both types of stannanes. DFT analysis was completed on the series of stannanes; a predicted frequency analysis was obtained which complemented the experimental Infra‐red data in elucidation of the compounds. The α‐alkoxy and α‐aminostannanes provided stable precursors to the organolithiums required for the synthesis of the novel Fischer chromium carbenes. The organolithiums were obtained via tinlithium exchange at low temperatures, followed by the addition of chromium hexacarbonyl to form the acylpentacarbonyl‐chromate salt. Alkylation of this intermediate using a Meerwein salt, Me₃OBF₄, gave rise to the novel Fischer chromium carbene complexes. Fischer chromium carbenes derived from the two isomeric butyl and isobutyl stannanes and the two N‐ethyl α‐aminostannanes were successfully synthesised. The difficulty encountered in the purification of the Fischer carbene complexes hindered the full characterisation, due to the presence of a by‐product, tetrabutyltin.
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50

Carson, Cantwell G. "Noble and transition metal aromatic frameworks synthesis, properties, and stability /." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/29657.

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Thesis (Ph. D.)--Materials Science and Engineering, Georgia Institute of Technology, 2009.
Committee Chair: Rina Tannenbaum; Committee Co-Chair: Rosario A. Gerhardt; Committee Member: E. Kent Barefield; Committee Member: Karl I. Jacob; Committee Member: Preet Singh; Committee Member: R. Bruce King. Part of the SMARTech Electronic Thesis and Dissertation Collection.
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