Dissertations / Theses on the topic 'Metal Substituted'
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Zhao, Ningfeng Eichhorn David M. "Cyano-substituted polypyrazolylborate metal complexes." Diss., Click here for available full-text of this thesis, 2005. http://library.wichita.edu/digitallibrary/etd/2005/d019.pdf.
Full text"December 2005." Title from PDF title page (viewed on February 8, 2007). Thesis adviser: David Eichhorn. Includes bibliographic references (leaves 123-128).
O'Sullivan, Julie Ann. "Metal complexes of trimethylsilyl substituted cyclooctatetraenes." Thesis, University of Sussex, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.361361.
Full textHopman, Martyn. "Organometallic compounds with bulky, phenyl-substituted, or derived donor-substituted ligands." Thesis, University of Sussex, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.285105.
Full textZanini, Margherita. "Transition metal-catalyzed reactions of heteroatom-substituted alkynes." Doctoral thesis, Universitat Rovira i Virgili, 2020. http://hdl.handle.net/10803/670898.
Full textLa catálisis homogénea de oro(I) es una poderosa herramienta para la construcción de complejidad molecular en condiciones suaves mediante la activación selectiva de enlaces múltiples C-C. Nuestro grupo ha desarrollado una serie de reacciones de alquinos con alquenos catalizadas por oro(I), tanto de forma intramolecular como intermolecular. Estas reacciones comienzan con el ataque nucleofílico del doble enlace al alquino para formar un intermedio tipo ciclopropil carbeno de oro(I), que evoluciona para dar lugar a diferentes productos. En esta Tesis Doctoral se describen una serie de nuevas reacciones intermoleculares entre alquenos y alquinos sustituidos con heteroátomos catalizadas por oro(I). Además, se presentan los estudios mecanísticos correspondientes, realizados mediante experimentos y cálculos DFT. En las reacciones entre bromoalquinos y alquenos catalizadas por oro(I), inicialmente se genera un 1-bromo ciclopropil carbeno de oro(I) que evoluciona a través de un catión bromonio cíclico para formar un vinilideno de oro(I) o un catión vinilidilarenio estabilizado por oro. Los cálculos DFT demuestran que estos dos intermedios son confórmeros de la misma especie pero tienen diferente reactividad. Los vinilidenos de oro(I) pueden participar en reacciones de activacion C-H o de hidroarilación, mientras que los cationes vinilidilarenio participan en transposiciones 1,2 del areno para formar enlaces triples.
Homogeneous gold(I) catalysis is a powerful tool for the construction of molecular complexity under mild conditions by mean of the selective activation of C-C multiple bonds. Our group developed a series of gold(I)-catalyzed reactions of alkynes with alkenes both in intramolecular and intermolecular settings. These reactions start with the nucleophilic attack of the double bond on the alkyne to form a cyclopropyl gold(I) carbene intermediate that than rearranges into a variety of products. In this Doctoral Thesis we present a series of new gold(I)-catalyzed intermolecular reactions of heteroatom-substituted alkynes with alkenes and the mechanistic investigation we performed by means of experimental work and DFT calculations. In the gold(I) catalyzed reactions of bromoalkynes with alkenes, the 1-bromo-cyclopropyl gold(I) carbene initially formed rearranges into gold(I) vinylidenes and vinylidenephenonium gold(I) cations passing through a cyclic bromonium intermediate. DFT calculations demonstrated that these two reactive intermediates are conformers of the same species but have different reactivity. On one side gold(I)-vinylidenes can undergo hydroarylation or C-H insertion, while vinylidenephenonium gold(I) cations easily undergo 1,2-aryl shift forming a triple bond. Moreover, we found that terminal alkynyl ethers are undergoing efficiently [2+2] cycloaddition with alkenes to form cyclobutene derivatives that can be easily transformed into the corresponding cyclobutanones.
Wang, Junwei. "Metal-based approaches to C(1)-substituted glycals." Thesis, University of Bristol, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.503863.
Full textRivers, Christopher John. "Transition metal complexes incorporating trialkylsilyl substituted pentalene ligands." Thesis, University of Sussex, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.289228.
Full textZenonos, Christianna. "Synthesis and characterisation of metal substituted microporous materials." Thesis, University College London (University of London), 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.405414.
Full textVisscher, Arne. "Fluorescence Studies of Amine-substituted Azaanthracene Metal Complexes." Doctoral thesis, Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2016. http://hdl.handle.net/11858/00-1735-0000-0028-87CC-A.
Full textCairns, Gareth Alan. "Novel aspects of alkyne substituted transition metal complexes." Thesis, University of Bath, 1998. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.242813.
Full textBaxter, Paul N. W. "Substituted #alpha#-diimine complexes of group VI metal carbonyls." Thesis, University of Kent, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.279680.
Full textZhang, Guangya. "Synthesis and characterization of metal substituted colloidal silicate-1." Licentiate thesis, Luleå tekniska universitet, 1996. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-25696.
Full textKinder, James D. "Synthesis and characterization of methoxy-substituted tribenzocyclotriynes and their metal complexes." Case Western Reserve University School of Graduate Studies / OhioLINK, 1992. http://rave.ohiolink.edu/etdc/view?acc_num=case1060108138.
Full textThomas, Jaron Michael. "On Metal synthesis of Some Substituted Rhenium and Manganese Complexes." TopSCHOLAR®, 2012. http://digitalcommons.wku.edu/theses/1225.
Full textGardner, Adrian Michael. "Spectroscopy of substituted benzene molecules and metal rare gas interactions." Thesis, University of Nottingham, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.606296.
Full textFranklin, Ilona Louise. "Studies of metal substituted alumino-phosphates and other related systems." Thesis, University College London (University of London), 2005. http://discovery.ucl.ac.uk/1445536/.
Full textUeta, Kento. "Development of Novel meso-Heteroatom Substituted Corroles." Doctoral thesis, Kyoto University, 2021. http://hdl.handle.net/2433/263482.
Full textToader, Marius. "Self-assembled molecular arrays of distinct types of substituted metal phthalocyanines on crystalline metal substrates." Doctoral thesis, Universitätsbibliothek Chemnitz, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-100419.
Full textTownsend, James Alan. "Synthesis, characterization and application of N-substituted and C-substituted nickel cyclam cataylsts in hydrodehalogenation reactions." Diss., Manhattan, Kan. : Kansas State University, 2009. http://hdl.handle.net/2097/1469.
Full textRobinson, Matthew Peter. "Ortho-substituted arylsilanes in oxidative gold catalysis." Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/31394.
Full textHill, Susan Jane. "The synthesis of transition metal substituted aluminophosphate molecular sieves using tetrahalometallates." Thesis, University of Wolverhampton, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.337315.
Full textHenney, Roland Patrick Graham. "The transition metal chemistry of some thienyl- and phenyl-substituted pyridines." Thesis, University of Cambridge, 1991. https://www.repository.cam.ac.uk/handle/1810/271903.
Full textMac, Mahon Colm. "Magnetic and magnetoelastic properties of cerium substituted rare earth transition metal glasses." Thesis, University of Hull, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.395506.
Full textStepanenko, Vladimir. "Self-Assembly of Bay-Substituted Perylene Bisimide by Ligand-Metal Ion Coordination." Doctoral thesis, kostenfrei, 2008. http://www.opus-bayern.de/uni-wuerzburg/volltexte/2009/3206/.
Full textNeathery, James Leif. "Off-Metal Synthesis of Some Aryl Substituted Rhenium n5-Cyclopenta [C] Pyridazyl Complexes." TopSCHOLAR®, 2009. http://digitalcommons.wku.edu/theses/125.
Full textMal, Sib Sankar [Verfasser]. "Synthesis, structure and properties of multi-transition metal-substituted polyoxotungstates / Sib Sankar Mal." Bremen : IRC-Library, Information Resource Center der Jacobs University Bremen, 2008. http://d-nb.info/1034982680/34.
Full textHayton, Lynda Julie. "Matrix ESR studies of metal atoms with silicon substituted alkenes and related compounds." Thesis, University of Bristol, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325887.
Full textThornberry, Matthew P. "Synthesis, Properties, and Reactivity of Pentafluorophenyl Substituted Cyclopentadienes and Their Transition Metal Complexes." Diss., Virginia Tech, 2001. http://hdl.handle.net/10919/28539.
Full textPh. D.
Simpson, Linda. "Trivalent group 13 metal complexes of N-substituted-3-hydroxy-2-methyl-4-pyridinones." Thesis, University of British Columbia, 1990. http://hdl.handle.net/2429/28885.
Full textScience, Faculty of
Chemistry, Department of
Graduate
Moorlag, Hendrik. "Chiral [alpha]-substituted [alpha]-hydroxy acids (stereoselective) synthesis using transition metal and enzyme catalysis /." [S.l. : [Groningen : s.n.] ; University Library Groningen] [Host], 1991. http://irs.ub.rug.nl/ppn/290738156.
Full textZhu, Zhi Huai. "The metal-insulator transition in Mn-substituted Sr₃Ru₂O₇ by a photoemission study." Thesis, University of British Columbia, 2009. http://hdl.handle.net/2429/13906.
Full textMukherjee, Sudarshana. "Control over Dimensionality and Magnetic Properties in Metal Complexes formed with Substituted Salicyl Ligands." [S.l. : s.n.], 2008. http://digbib.ubka.uni-karlsruhe.de/volltexte/1000009757.
Full textLanez, Touhami. "Synthesis of pyrindine and cyclopent[c]azepine derivatives by photochemical and acid-catalysed degradation of substituted ferrocenes." Thesis, University of Strathclyde, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.278447.
Full textLayer, Teresa. "Synthesis and characterisation of novel phosphorus and selenium substituted carbonyl clusters of ruthenium and osmium." Thesis, University of Cambridge, 1993. https://www.repository.cam.ac.uk/handle/1810/272563.
Full textSmit, Theodoor Martin. "Heteroatom substituted bis(imino)pyridine and bis(phenoxy-amine) transition metal complexes for olefin polymerisation." Thesis, Imperial College London, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.420626.
Full textDelf, Alexander Robert L. "Electrochemical and spectroelectrochemical characterisation of cyano and trifluoromethyl substituted polypyridines and their transition metal complexes." Thesis, University of Edinburgh, 2011. http://hdl.handle.net/1842/5026.
Full textSmith, Jason Jeffrey. "Spectroscopic studies of metal substituted forms of the zinc enzyme phosphomannose isomerase from Candida albicans." Thesis, University of East Anglia, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.338234.
Full textPriimov, Gleb Urevich. "Synthesis, kinetic and mechanistic studies of substituted 2,2':6',2''-terpyridines and their metal complexes." Thesis, University of Warwick, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.340070.
Full textAziz, Y. F. A. "The metal complexes of 3-hydroxyflavone and tin(IV) complexes of catechol and substituted catechol." Thesis, University of Reading, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.233191.
Full textHuang, Shih-huang. "Synthetic, Mechanistic, and Structural Studies of Polynuclear Metal Clusters and Hydrazido-Substituted Tantalum(V) Compounds." Thesis, University of North Texas, 2010. https://digital.library.unt.edu/ark:/67531/metadc33166/.
Full textKabwe, Kapambwe Peter. "Synthesis, spectroscopic and nonlinear optical properties of metal-free and nickel β substituted binuclear phthalocyanines." Thesis, Rhodes University, 2016. http://hdl.handle.net/10962/3013.
Full textXiao, Xingxing [Verfasser], Anke [Akademischer Betreuer] Weidenkaff, and Rainer [Akademischer Betreuer] Niewa. "Thermoelectric Properties of Alkaline Earth Metal Substituted Europium Titanates / Xingxing Xiao ; Anke Weidenkaff, Rainer Niewa." Darmstadt : Universitäts- und Landesbibliothek, 2021. http://d-nb.info/1225865751/34.
Full textGuven, Sinem. "Construction Of Pyrrolo[1,2-a]pyrazine Structure By Metal Catalyzed Cyclization Of N-propargyl Substituted Pyrroles." Master's thesis, METU, 2013. http://etd.lib.metu.edu.tr/upload/12615582/index.pdf.
Full texttherefore, many different approaches to generate this skeleton have been developed so far. In this study, our prior aim was to develop a new synthetic methodology for the formation of pyrrolo[1,2-a]pyrazine moiety. In the first part of this focus, the starting compound, methyl 2-(2-methoxy-2-oxoethyl)-1-(prop-2-yn-1-yl)-1H-pyrrole-3-carboxylate was successfully synthesized, then the conversion of the ester group at the lower arm to the amine group was carried out. Heteroatom cyclization catalyzed by CuI afforded the desired substituted pyrrolo[1,2-a]pyrazine structure. In the second part, it was aimed to synthesize new compounds with unusual structures which are not described in the literature
namely, as pyrrolo[1,2-a]pyrazine N-oxide. In this direction, first pyrrole was submitted to Vilsmeier-Haack reaction to attach a formyl group at C-2. Substitution reaction then effectively gave 1-(prop-2-yn-1-yl)-1H-pyrrole-2-carbaldehyde, which was a key molecule to synthesize the aldoxime. AuCl3 catalyzed cyclization of the corresponding oxime afforded pyrrolo[1,2-a]pyrazine N-oxide. In the next step, Sonogashira coupling reactions were carried out to obtain terminal alkynes (RC&equiv
CR'
) starting from 1-(prop-2-yn-1-yl)-1H-pyrrole-2-carbaldehyde. The aim of this part was to study the effect of aryl groups to the activated alkyl functional group by a metal catalyst. In this case, unexpected oxime-oxime transformation was observed, which is unprecedented in the literature
Winter, Ross S. "Understanding the reorganisation of lacunary [γ-SiW10O36]8- during the synthesis of transition metal substituted polyoxotungstates." Thesis, University of Glasgow, 2014. http://theses.gla.ac.uk/5509/.
Full textSriramulu, Phenahas Gandu. "On-Metal Synthesis of Some Aryl Substituted Rhenium ┫ Cyclopenta[C] Pyridazyl Complexes." TopSCHOLAR®, 2010. http://digitalcommons.wku.edu/theses/197.
Full textLu, Yingdong. "The development of metal catalyzed, one-step approaches to alpha-amino acids, pyrroles and alpha-substituted amides." Thesis, McGill University, 2009. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=66774.
Full textLe Développement d'Approches en Un Pot, Catalysées par un Métal de Transition pour la Synthèse d'-Acides Aminés, Pyrroles et d'Amides -SubstituésL'objectif de cette recherche était de dévolopper une nouvelle méthode en un pot pour former des produits biologiquement importants contenant un azote, tels que les pyrroles, les dérivés d'acides aminés et les amines/amides α-substitués. Ces produits sont tous générés à partir de produits de départ facilement disponible, tels que les imines, les chlorures d'acides, les alcynes et/ou le monoxide de carbone, et souvent via la catalyse par un métal de transition.Le chapitre 2 de cette thèse décrit comment les α-phenoxyamides peuvent être utilisés dans les carbonylations catalysées par le palladium pour former des dérivés d'α-acides aminés, au lieu de la synthèse, précédemment reportée, avec des imines et des chlorures d'acides. Ces substrats sont similaires aux sels d'iminiums N-acylés formés in situ mais ils ont l'avantage d'être plus stable, et en présence d'un complexe de palladium(0) (Pd2dba3) et d'un acide de Lewis, ils peuvent subir une activation de liaison carbone-oxygène pour former des palladacyles. Le couplage de cette addition oxydante avec la carbonylation fournit un voie douce et en une étape pour préparer des dérivés d'α-acides aminés avec de hauts rendements.Dans le chapitre 3, nous montrons que, sans l'assistance d'acides de Lewis, les α-(3-pyridyloxy)amides peuvent directement subir une addition oxydante avec un catalyseur de palladium et peuvent être employés dans la carbonylation catalysée par le palladium pour former des dérivés d'α-acides aminés. Cette réaction exige aucuns co-catalyseurs acides ou basiques, et elle tolère de nombreux substituents sensibles. De plus, cette réaction de carbonylation peut se coupler à la cycloaddition avec un alcyne pour former des pyrroles en une é
Clark, Stephen. "Synthesis, crystal structures and mesogenic properties of some transition metal complexes of substituted phenylmalonaldehyde and related compounds." Thesis, University of Hull, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.395685.
Full textJende, Lars Norman [Verfasser], and Reiner [Akademischer Betreuer] Anwander. "Donor-Substituted Cyclopentadienyl Ligands in Rare-Earth Metal-Based Isoprene Polymerization / Lars Norman Jende ; Betreuer: Reiner Anwander." Tübingen : Universitätsbibliothek Tübingen, 2016. http://d-nb.info/1164168126/34.
Full textMurray, Paul Ross. "Electrochemical and spectroelectrochemical studies on nitro-substituted poly-pyridine derivatives and their transition metal co-ordination complexes." Thesis, University of Edinburgh, 2005. http://hdl.handle.net/1842/11208.
Full textBankole, Owolabi M., and Tebello Nyokong. "Mercaptopyridine-substituted indium, zinc, and metal-free phthalocyanines: nonlinear optical studies in solution and on polymer matrices." Taylor & Francis Group, 2015. http://hdl.handle.net/10962/d1020313.
Full textOriginal publication is available at http://dx.doi.org/10.1080/00958972.2015.1077237
Visscher, Arne [Verfasser], Dietmar [Akademischer Betreuer] [Gutachter] Stalke, and Franc [Gutachter] Meyer. "Fluorescence Studies of Amine-substituted Azaanthracene Metal Complexes / Arne Visscher. Betreuer: Dietmar Stalke. Gutachter: Dietmar Stalke ; Franc Meyer." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2016. http://d-nb.info/1107761859/34.
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