Dissertations / Theses on the topic '030204 Main Group Metal Chemistry'
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Davies, Aaron James. "Aspects of main group metal amido and carbene chemistry." Thesis, Cardiff University, 2004. http://orca.cf.ac.uk/55408/.
Full textRoe, Stephen Mark. "Structural studies of main group metal carboxylates and dithiocarbamates." Thesis, University of Warwick, 1989. http://wrap.warwick.ac.uk/56212/.
Full textNguyen, Tu Ngoc. "Electrosynthesis and characterization of main group and transition metal oxides." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/11949.
Full textCampbell, Ross. "Alkali metal mediated bimetallic main group and transition organometallic chemistry." Thesis, University of Strathclyde, 2012. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=16944.
Full textGiaquinta, Daniel M. (Daniel Mark). "Synthesis and characterization of new layered main group-transition metal oxides." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/17344.
Full textGenge, Anthony Richard John. "Mono- and bi-dentate group 15 and 16 ligand complexes of main group metal halides." Thesis, University of Southampton, 1999. https://eprints.soton.ac.uk/393598/.
Full textHarris, Neil. "A matrix isolation study of main group and transition metal atom cryochemistry." Thesis, University of Hull, 2001. http://hydra.hull.ac.uk/resources/hull:12359.
Full textCibuzar, Michael. "Metal Catalyzed Group 14 And 15 Bond Forming Reactions: Heterodehydrocoupling And Hydrophosphination." ScholarWorks @ UVM, 2019. https://scholarworks.uvm.edu/graddis/1023.
Full textSadler, Mark. "Main group selenium chemistry and a series of hydrophobic bispidone-transition metal complexes." Thesis, University of Manchester, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.515118.
Full textBerning, Douglas E. "New developments in main group and transition metal chemistry of water-soluble phospines /." free to MU campus, to others for purchase, 1997. http://wwwlib.umi.com/cr/mo/fullcit?p9841266.
Full textDay, Ben. "Main group metal complexes supported by N,N'-bidentate ligands : synthetic and catalytic investigations." Thesis, University of Sussex, 2013. http://sro.sussex.ac.uk/id/eprint/47205/.
Full textAl-Mukhtar, Mohammad Nazar. "Inorganic fluorine chemistry : low-temperature fluorination of the main group elements and some metal fluorides." Thesis, University of Leicester, 1990. http://hdl.handle.net/2381/35039.
Full textApostolico, Leonardo. "The synthesis and characterization of novel precursors for the CVD of main group metal phosphides." Thesis, University of Bath, 2003. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.288854.
Full textRiddlestone, Ian Martin. "Synthesis and reactivity of transition metal-group 13 complexes." Thesis, University of Oxford, 2013. http://ora.ox.ac.uk/objects/uuid:f253a2a5-cc6e-4978-86d9-5f3064dadc1b.
Full textUiterweerd, Patrick Gerard Herman. "2,6-bis(dimethylamino)phenyl and 1-aza-2-phospha(V)allyl main group metal chemistry." Thesis, University of Sussex, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366076.
Full textGustafson, Samantha Jane. "Computational Studies of Alkane C-H Functionalization by Main-Group Metals." BYU ScholarsArchive, 2016. https://scholarsarchive.byu.edu/etd/5992.
Full textPrecht, Thea-Luise. "Preparing main group metal clusters from organoaluminium reagents : new possibilities in alkali-activated polymer crosslinking." Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/285495.
Full textAhmed, Ejaz. "Room-Temperature Synthesis of Transition Metal Clusters and Main Group Polycations from Ionic Liquids." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2011. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-80124.
Full textSaleh, 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.
Full textTinnermann, Hendrik. "Design, Synthesis and Applications of new cationic ligands of the 15th main group elements." Doctoral thesis, Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2017. http://hdl.handle.net/11858/00-1735-0000-0023-3FA7-F.
Full textAlmalki, Nawal. "Investigating the Application of N,N’-Disubstituted-1,8-Diamidonaphthalene as a Ligand in Transition Metal and Main Group Chemistry." Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/37816.
Full textKrahfuß, Mirjam Julia [Verfasser], and Udo [Gutachter] Radius. "N-Heterocyclic Silylenes as ambiphilic Reagents in Main Group Chemistry and as Ligands in Transition Metal Chemistry / Mirjam Julia Krahfuß ; Gutachter: Udo Radius." Würzburg : Universität Würzburg, 2020. http://d-nb.info/122291056X/34.
Full textWang, Yuwen [Verfasser], Matthias [Akademischer Betreuer] Driess, Matthias [Gutachter] Driess, and Christian [Gutachter] Müller. "Bis(N-heterocyclic silylene)xanthene in transition-metal catalysis and main group chemistry / Yuwen Wang ; Gutachter: Matthias Driess, Christian Müller ; Betreuer: Matthias Driess." Berlin : Technische Universität Berlin, 2020. http://d-nb.info/1205804749/34.
Full textEveland, Jeffrey Robert. "Synthetic, structural and bonding studies of main group-transition metal carbonyl clusters." Thesis, 1996. http://hdl.handle.net/1911/16925.
Full textWetherby, Anthony E. "Reaction of bulky main group metal (II) amides with polyfunctional phenol substrates." 2009. http://digital.library.okstate.edu/etd/Wetherby_okstate_0664D_10473.pdf.
Full textJianxiao, Xu. "Thermoelectric properties of transition metal oxides and thallium main group chalcogenides." Thesis, 2008. http://hdl.handle.net/10012/3848.
Full textZhang, Zhensheng. "Oxygen Bridged Metal Systems: Heterometallic Compounds Containing Main Group Metal, Transtion Metal and f-Elements." Doctoral thesis, 2010. http://hdl.handle.net/11858/00-1735-0000-0006-AEC9-2.
Full textQuinlivan, Patrick. "Main Group and Transition Metal Complexes Supported by Carbon, Sulfur, and Selenium Donor Ligands." Thesis, 2018. https://doi.org/10.7916/D8M91S9N.
Full textKrahfuß, Mirjam Julia. "N-Heterocyclic Silylenes as ambiphilic Reagents in Main Group Chemistry and as Ligands in Transition Metal Chemistry." Doctoral thesis, 2020. https://doi.org/10.25972/OPUS-21724.
Full textDiese Arbeit beschäftigt sich mit den Anwendungen des N-heterocyclischen Silylens Dipp2NHSi (1) als ambiphiles Reagenz in der Hauptgruppenchemie und als Ligand in der Übergangsmetallchemie. Ein Schwerpunkt dieser Arbeit ist die Beurteilung der Unterschiede in der Reaktivität von N-heterocyclischen Silylenen in der Hauptgruppen- und Übergangsmetallchemie im Vergleich zu den heutzutage allgegenwärtigen N heterocyclischen Carbenen. Im Verlauf dieser Studie wurde Silylen 1 mit Verbindungen der Gruppe 13 umgesetzt und die Addukte Dipp2NHSi·AlI3 (2), Dipp2NHSi·Al(C6F5)3 (3) und Dipp2NHSi·B(C6F5)3 (4) isoliert. Weiterhin wurde die Reaktivität von Dipp2NHSi (1) in Bezug auf ElementHalogen-Bindungen verschiedener Hauptgruppenelement-Verbindungen untersucht. Die Umsetzung mit elementarem Brom und Iod führt zu den Dihalogensilanen Dipp2NHSiBr2 (5) und Dipp2NHSiI2 (6). Unter Verwendung von Methyliodid, Benzylchlorid und Benzylbromid konnten die Insertionsprodukte Dipp2NHSi(I)(Me) (10), Dipp2NHSi(Cl)(benzyl) (11) und Dipp2NHSi(Br)(benzyl) (12) gebildet werden. Die Insertion ist gegenüber der reduktiven Kupplung unter Ausbildung von RH2C–CH2R (R = H, Ph) und dem Dihalosilan bevorzugt. Die Umsetzung von 1 mit dem Zinnchlorid Me3SnCl führt Bildung des Diazabutens {(Me3Sn)N(Dipp)CH}2 (9). Die Reaktion mit Ph2SnCl2 hingegen ergibt das Dichlorsilan Dipp2NHSiCl2 (8) sowie cyclische Polystannane der Form (Ph2Sn)n. Außerdem wurde Dipp2NHSi mit Aziden unterschiedlichen sterischen Anspruchs umgesetzt. Die Reaktion mit Adamantylazid führt zur Bildung des Tetrazolins 13. Das sterisch weniger anspruchsvolle Trimethylsilylazid reagiert mit Dipp2NHSi unter Bildung des Silylazids Dipp2NHSi(N(SiMe3)2)(N3) (14). Das Cyclosilamin 15 wird durch die Reaktion von 1 mit 2,6-(Diphenyl)phenylazid gebildet. Im zweiten Teil der Arbeit wurden die Bindungssituation und die Ligandeneigenschaften von Dipp2NHSi (1) in Übergangsmetallkomplexen mithilfe von theoretischen Rechnungen und experimentellen Untersuchungen beleuchtet. DFT-Rechnungen zu den grundlegenden elektronischen Eigenschaften von Me2Im/Me2NHSi und Dipp2Im/Dipp2NHSi ergaben signifikante Unterschiede im Bereich der Grenzorbitale, welche die Bindungssituation von NHSis im Allgemeinen beeinflussen. Insbesondere ein energetisch tiefliegendes π-Orbital scheint die Koordinationschemie dieser Liganden zu bestimmen. Zur Unterstützung der theoretischen Befunde wurden die Silylen-Komplexe M(CO)5(Dipp2NHSi)] (M = Cr 16, Mo 17, W 18) durch Umsetzung von Dipp2NHSi und [M(CO)6] (M= Cr, Mo, W) dargestellt und der Wolframkomplex 18 mit den NHC-Komplexen [W(CO)5(iPr2Im)] (19), [W(CO)5(iPr2ImMe)] (20) und [W(CO)5(Me2ImMe)] (21) verglichen. Die Bindung von Me2Im und Me2NHSi (= L) und Übergangsmetallkomplexen wurde für die verschiedenen Modellverbindungen [Ni(L)], [Ni(CO)3(L)] und [W(CO)5(L)] mittels DFT Rechnungen untersucht, wobei einige Unterschiede zwischen den M–NHSi und M–NHC Bindungen festgestellt wurden, welche die Bindungssituation in Übergangsmetallkomplexen stark beeinflussen. Im Unterschied zu NHCs zeigen N-heterocyclische Silylene eine Neigung zur Verbrückung zweier Metallzentren und dieses Verhalten konnte anhand dreier Beispielen belegt werden. Dipp2NHSi (1) reagiert mit [Ni(CO)4] zum Silylen-verbrückten Nickelkomplex [{Ni(CO)2(μ-Dipp2NHSi)}2] (22). Die Reduktion von Nickelocen mit Lithiumnaphthalid in der Gegenwart von Dipp2NHSi (1) führt zur Bildung des NHSi verbrückten, Ni(I)-Dimers [(η5-C5H5)Ni(µ-Dipp2NHSi)]2 (23). Ähnlich hierzu reagiert der dimere Komplex {[(η5-C5H5)Fe(CO)2]2} mit Dipp2NHSi zum Silylen-verbrückten dinuklearen Komplex [{(η5 C5H5)Fe(CO)}2(µ-CO)(µ-Dipp2NHSi)] (24). Weiterhin wurde die Insertion von Dipp2NHSi (1) in MetallHalogen-Bindungen anhand einer Reihe von Mangankomplexen der Form [Mn(CO)5(X)] (X = Cl, Br, I) untersucht. Die Reaktion von zwei Äquivalenten des Silylens 1 mit dem Iodokomplex [Mn(CO)5(I)] führt zur Bildung des Tricarbonylkomplexes [Mn(CO)3(Dipp2NHSi)2(I)] (25), in dem der Iodidligand symmetrisch zwischen den beiden Siliciumatomen der Silylenliganden in der {Mn(CO)3}-Ebene liegt. Ähnlich hierzu wird der Bis-Silylenkomplex [Mn(CO)3(Dipp2NHSi)2(Br)] (26) durch Umsetzung von [Mn(CO)5(Br)] mit 1 erhalten, wobei eine Wechselwirkung des Bromidliganden mit einem Silylenliganden beobachtet wird. Die Reaktion von Dipp2NHSi 1 mit [Mn(CO)5(Cl)] bei Raumtemperatur resultiert in der Bildung zweier Reaktionsprodukte, dem Bis-Silylenkomplex [Mn(CO)3(Dipp2NHSi)2(Cl)] (27*) und dem Insertionsprodukt [Mn(CO)4(Dipp2NHSi)(Dipp2NHSi-Cl)] (27). Die vollständige Übertragung des Halogenidoliganden auf das Siliciumatom von 1 kann auch für den Halb-Sandwich-Komplex [(η5-C5H5)Ni(PPh3)(Cl)] beobachtet werden, wobei der Komplex [Ni(PPh3)(η5-C5H5)(Dipp2NHSi-Cl)] (28) isoliert wird. Ähnlich hierzu führt die Reaktion von [(η5-C5H5)Fe(CO)2(I)] mit dem Silylen 1 ebenfalls zur Bildung des Insertionsproduktes [(η5 C5H5)Fe(CO)2(Dipp2NHSi-I)] (29)
Rauch, Michael S. "Main Group Metal Hydride, Alkyl and Fluoride Complexes: Towards CO2 Functionalization with Earth Abundant Metals." Thesis, 2019. https://doi.org/10.7916/d8-t4qw-ak42.
Full textHari, Krishna Reddy Kurre. "Electronic Structure And Bonding In Metallaboranes And Main Group Compounds." Thesis, 2012. http://hdl.handle.net/2005/2533.
Full textRong, Yi. "Main Group and Transition Metal Complexes Supported by Multidentate Tripodal Ligands that Feature Nitrogen, Oxygen and Sulfur Donors: Synthesis, Structural Characterization and Appliations." Thesis, 2013. https://doi.org/10.7916/D87D2S4D.
Full textvan, Hal Jaap Willem. "Catalytic applications of cluster compounds: Synthesis, characterization, catalytic activity and solution dynamics of heavy main group-transition metal carbonyl clusters." Thesis, 1997. http://hdl.handle.net/1911/19225.
Full textRamaswamy, Padmini. "Investigations Of Open–framework Structures Based On Main Group, Transition Metal And Actinide Elements." Thesis, 2010. http://etd.iisc.ernet.in/handle/2005/1912.
Full textHammond, Matthew James. "Synthetic and Structural Investigations of Main Group and Transition Metal Compounds Supported by a Multidentate [N3C] Donor Ligand." Thesis, 2021. https://doi.org/10.7916/d8-znk9-s857.
Full textChakrabarti, Neena. "A Journey Across the Periodic Table: The Synthesis and Characterization of Main Group Metals Supported by Nitrogen- or Sulfur-Rich Ligands." Thesis, 2014. https://doi.org/10.7916/D8PN93SR.
Full textLiu, Po-Chun, and 劉柏均. "Development of New Multicoeffient Density Functional Theory for Main-Group and Transition Metal Chemistry ; Reaction Dynamics Study of Noble-Gas Exchange Reactions." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/87548192189876943260.
Full text國立中正大學
化學暨生物化學研究所
102
This thesis consists of three chapters. In chapter 1, we applied the multi-coefficient density functional theory (MC-DFT) to a few recent Minnesota functionals. In chapter 2, we have developed a new method using mixed functionals and we tested it on 70 bond energies of 3d transition-metal-containing molecules. In chapter 3, we investigated the kinetic isotope effects and tunneling effects of noble-gas exchange reactions. In chapter 1, we have applied MC-DFT method to four recent Minnesota functionals, including M06-2X, M08-HX, M11, and MN12-SX on the performance of thermochemical kinetics. The results indicated that the accuracy can be improved significantly by using two or three basis sets. We further included the SCS-MP2 energies into MC-DFT, and the resulting mean unsigned errors (MUE) decreased by ~0.3 kcal/mol for the most accurate basis set combinations. The M06-2X functional with the simple [6-311+G(d,p)/6-311+G(2d,2p)] combination gave the best performance/cost ratios for the MC-DFT and MC-SCS-MP2 | MC-DFT methods with MUE of 1.58 and 1.22 kcal/mol, respectively. In chapter 2, we have developed a new method using mixed functionals for transition metals. This method was tested against a database including 70 bond energies of 3d transition-metal-containing molecules with small experimental uncertainties. The best mixed functional method was the τ-HCTHhyb/mPW2-PLYP combination, and it yielded an MUE of 5.49 kcal/mol. In comparison, the single τ-HCTHhyb and mPW2-PLYP functional gave MUEs of 6.14 and 12.88 kcal/mol, respectively. We also applied the MC-DFT approach into the mixed functional and it yielded an MUE of 4.94 kcal/mol. We further added the MP2 and CCSD energies into the new method, and obtained MUE of 4.75 kcal/mol and 4.51 kcal/mol, respectively. In chapter 3, we used VTST/MT method to investigate four noble-gas exchange reactions: Ng’ + HNBNg+ (Ng, Ng’ = He, Ne, and Ar). The barrier heights of these four reactions were predicted to be 5-9 kcal/mol. The calculated results showed significant tunneling effects even at room temperature, especially for the He + HNBHe+ reaction. All reactions showed very significant tunneling effects at low temperature. For helium exchange reactions, the internal helium atom (in the cation) contributed more in the tunneling effects than the external helium atom (the neutral reactant) at low temperature.