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Dissertations / Theses on the topic 'Synthesis of alkyne complexes'

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Published: 4 June 2021

Last updated: 13 February 2022

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1

Wexler, Pamela Andrea. "Synthesis and reactivity of tantalum and tungsten alkyne complexes: Models for alkyne cyclization." Diss., The University of Arizona, 1990. http://hdl.handle.net/10150/185228.

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Intermediates in the cyclization reaction of alkynes have been isolated using the group 5 tantalum phenoxide reagents, Ta(DIPP)₂Cl₃(OEt₂) and Ta(DIPP)₃Cl₂(OEt₂) (DIPP = O-2,6-C₆H₃-i-Pr₂). The extent of cyclization has been effected by controlling the sterics at the metal center or the alkyne itself. Reducing the less congested bis phenoxide complex, Ta(DIPP)₂Cl₃(OEt₂), by two electrons in the presence of 2-butyne or 3-hexyne allowed the isolation of an arene complex, (C₆R₆)Ta(DIPP)₂Cl (R = Me, Et), which is formally classified as a 7-metallanorbornadiene. This complex can also be reduced by on

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2

Helps, I. M. "The synthesis of plant growth regulators via alkyne hexacarbonyldicobalt complexes." Thesis, University of Strathclyde, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381126.

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3

Fryatt, Ross. "Heterobimetallic alkyne complexes and their use in asymmetric organic synthesis." Thesis, Loughborough University, 2004. https://dspace.lboro.ac.uk/2134/34925.

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This thesis describes the use of heterobimetallic alkyne complexes in asymmetric organic synthetic pathways. Unlike previous protocols in the literature, the source of chiral control is due to the inherent chirality of the heterobimetallic core and not from an external source. A new method for the preparation of Co(CO)3MoCp(CO)2-alkyne complexes has been addressed with a view to a more rapid and cleaner preparation of these complexes, adapting previously known literature methodology. Preparation of diastereomerically-enriched alcohol complexes has also been attempted.

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4

Poulton, Andrew Michael. "Investigation into the uses of bimetallic alkyne complexes in organic synthesis." Thesis, Loughborough University, 2005. https://dspace.lboro.ac.uk/2134/34566.

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This thesis describes the use of both heterobimetallic and novel desymmetrised homobimetallic metal alkyne complexes in organic chemistry. A range of novel desymmetrised Co2(CO)5IPr-alkyne complexes have been synthesised and their reactivity investigated. This resulted in a highly diastereoselective thermal Pauson–Khand reaction. Previous protocols in the literature have had to use N-oxide promoters to achieve diastereoselectivity on desymmetrised bis-cobalt cores. The use of substituted dihydrofurans as cyclopropane surrogates for the formation of novel homobimetallic 1,3-dipoles has been rea

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5

Armstrong, Elaine M. "The synthesis and reactions of molybdenum(II) and tungsten(II) alkyne complexes." Thesis, Bangor University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.314395.

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6

Flower, Kevin R. "The synthesis and reactions of some new cationic alkyne complexes of tungsten(II)." Thesis, Bangor University, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.236744.

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7

Fletcher, Anthony James. "Preparation and synthetic use of heterobimetallic alkyne complexes." Thesis, Loughborough University, 2002. https://dspace.lboro.ac.uk/2134/35938.

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This thesis describes the use of heterobimetallic alkyne complexes for use in an efficient stereoselective variant of the Pauson-Khand reaction. Unlike previous protocols found in the literature the source of chiral control upon cyclisation arises solely from the inherently chiral CoMoC2 core of these complexes and not from an external source. The inherently chiral Co(CO)3MoCp(CO)2- and desymmetrised Co2(CO)5(PPh3)-alkyne complexes were utilised as efficient chiral auxiliaries for nucleophilic additions to remote centres of complexed propargylic aldehydes to form secondary propargyl alcohols w

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8

Parker, Kyle Daniel James. "The synthesis and reactivity of tantalum diamidophosphine complexes featuring an activated alkyne unit." Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/47058.

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A series of tantalum complexes supported by the diamidophosphine ligand [PhNPN*] were synthesized using Ta(alkyne)Cl₃(DME), Ta(V) reagents that feature a reduced alkyne unit: [PhNPN*]Ta(3-hexyne)X, and [PhNPN*]Ta(BTA)X (X = Cl, H, alkyl, N₃; BTA = bis(trimethylsilyl)acetylene). For these complexes, the bonding and reactivity at tantalum is best understood as a combination of both the high-valent ‘Ta(V)-alkenediyl’ and low-valent ‘Ta(III)-alkyne’ structural formalisms. The synthesis and reactivity of a series of Ta imide complexes, generated via the displacement of the alkyne ligand with an ar

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9

Kataoka, Yasutaka. "Generation and Synthetic Applications of Niobium-and Tantalum-Alkyne Complexes." Kyoto University, 1992. http://hdl.handle.net/2433/74593.

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10

Harris, Michael C. J. "Synthetic application of zirconocene #eta#'2-imine and #eta#'2-alkyne complexes." Thesis, University of Southampton, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.295637.

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11

Brayshaw, Simon Keith. "Metal complexes bearing pendant alkynes and metal complexes of N-heterocyclic carbenes." University of Western Australia. School of Biomedical and Chemical Sciences, 2004. http://theses.library.uwa.edu.au/adt-WU2005.0017.

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This thesis is comprised of two parts. The first part describes the synthesis of cyclopentadienyltungsten complexes containing a pendant alkyne group (I), and the subsequent photo-induced intramolecular coordination of the alkyne, forming complexes such as II. Compounds containing intramolecularly coordinated alkynes are rare, and this is the first example using cyclopentadiene as the core ligand. The second part describes the synthesis and structural characterisation of a number of novel metal complexes containing N-heterocyclic carbene ligands, some containing particular functionality for ta

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12

Ballisai, Antonio. "Synthesis of rigid-rod metal-alkynyl complexes." Thesis, Imperial College London, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.433302.

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13

Chan, Yew Boon Colin. "Synthesis and reactivity of platinum alkynyl complexes." Thesis, Imperial College London, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.395761.

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14

Lam, Chan-fung, and 林親鳳. "Synthesis, optical and luminescence studies of rhenium(I) diimine alkynyl complexes and their utilization as building blocks for theassembly of multinuclear and mixed-metal complexes." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2005. http://hub.hku.hk/bib/B32010564.

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15

Eaves, Samantha Grace. "Trans-bis(alkynyl) ruthenium complexes : synthesis, structure and reactivity." Thesis, Durham University, 2015. http://etheses.dur.ac.uk/11444/.

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This Thesis describes the synthesis and characterisation of a series of trans-bis(alkynyl) ruthenium complexes, trans-[Ru(C≡CR)2(L)4], to better understand how the variation of the metal ancillary ligands (L) affect electronic structure and spectroscopic properties, chemical reactivity, and behaviour in metal|molecule|metal junctions. Reactions of cis-[RuCl2(dppm)2] with terminal alkyne HC≡CC6H4-4-R, in the presence of TlBF4 and base, gives into trans-bis(alkynyl) complexes, trans-[Ru(C≡CC6H4-4-R)2(dppm)2], for electron withdrawing R groups or cationic η3-butenynyl complexes, E-[Ru(η3-{HC(C6H

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16

Jurberg, Igor Dias. "Synthesis of Alkynes and New Transformations Catalyzed by Gold(I) Complexes." Palaiseau, Ecole polytechnique, 2010. http://pastel.archives-ouvertes.fr/docs/00/57/00/64/PDF/These_Igor.pdf.

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Sur la plateforme de thèses en ligne Tel on trouve le résumé suivant en français : La synthèse d'alcynes en utilisant des isoxazolones comme précurseurs a été une méthode développée dans notre laboratoire dans ler dernières années. Nous avons appliqué cette méthodologie pour la synthèse de 3-alkynylamides et leur utilisation pour générer des dihydropyrrolones. Nous avons aussi développé de nouvelles réactions catalysées pour complexes d'or(I): la synthèse de 4-oxazol-2-ones à partir de Boc-ynamides, une séquence de transfert 1,5 d'hydrure et cyclisation pour former des éther cycliques et la fo

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17

Liu, Tsz-chung Alvin, and 廖子衝. "Design and synthesis of luminescent coumarin-containing platinum (II) terpyridine alkynyl complexes and their spectroscopic, photophysicaland binding studies." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2011. http://hub.hku.hk/bib/B47168353.

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18

Chan, Ka-man Carmen, and 陳嘉敏. "Design and synthesis of luminescent branched multinuclear platinum(II)alkynyl complexes and the study of their two-photon absorptionproperties." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2010. http://hub.hku.hk/bib/B43703653.

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19

Chung, Wai-kin, and 鍾偉堅. "Design and syntheses of luminescent rhenium(I) diimine alkynyl complexes with hole-transporting and/or electron-transporting moietiesand their use as potential triplet emitters." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2009. http://hub.hku.hk/bib/B42181938.

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20

Àrias, i. Burguera Òscar Verfasser], Matthias [Akademischer Betreuer] [Tamm, and Daniel B. [Akademischer Betreuer] Werz. "Development of catalysts for alkyne metathesis : Synthesis of functionalised molybdenum benzylidyne complexes and related species / Òscar Àrias i Burguera ; Matthias Tamm, Daniel B. Werz." Braunschweig : Technische Universität Braunschweig, 2020. http://d-nb.info/1205461957/34.

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21

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. Ch

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22

Friedrich, Holger Bernhard. "The synthesis and reactivity of functionalised alkyl transition metal complexes." Doctoral thesis, University of Cape Town, 1990. http://hdl.handle.net/11427/22277.

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Includes bibliographical references.<br>The complexes [CpFe(CO)₂CH₂X] and [CpW(CO)₃CH₂X] (Cp = n⁵-C₅H₅; X=Cl, Br, I) have been prepared and their reactivity with a series of tertiary phosphines, amines, SMe₂ and AsPh₃ in THF, CH₃CN and MeOH has been investigated. Two types of cationic products, namely the ylide complexes [CpM(CO)nCH₂L]+ or the disubstituted complexes [CpML₂(CO)n-l]+ (M = Fe, n = 2; M = W, n = 3) were obtained, depending on the halide (X), the ligand (L), the metal (M) and the solvent used. The variables X, L, M and the solvent used were also all found to influence the rates of

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23

盧偉祥 and Wai-cheung Lo. "Metal complexes of porphyrins and porphycenes in catalytic cyclopropanation and aziridination of alkenes." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1998. http://hub.hku.hk/bib/B31237484.

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24

Chan, Hoi-yiu, and 陳凱耀. "Design and synthesis of luminescent mono- and dinuclear platinum(II) alkynyl terpyridine complexes: fromphotophysics to aggregation and self-assembly." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2006. http://hub.hku.hk/bib/B36929232.

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25

Liao, Yi-Hsien. "The synthesis, reactivity and application of functionalized alkyl transition metal complexes." Thesis, University of Cape Town, 1994. http://hdl.handle.net/11427/23081.

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Haloalkyl transition metal complexes can be precursors for a wide range of useful complexes. In Chapter 1, the bromohexyl iron complex, [CpFe(C0)2{(CH2) 0Br}] has been prepared and new information on electrochemical and thermal behaviour of (CpFe(C0)2{(CH2) 6Br}] has been obtained from cyclic voltammetry and differential scanning calorimetry respectively. The chemical reactivity of (CpFe(C0)2{(CH2) 0Br}] with various reagents including NaOMe, a cobaloxime anion, Meli, NaN3 , magnesium metal, phenol derivatives ( phenol, resorcinol, 4-hydroxybenzyl alcohol and 3,5- dihydroxybenzyl alcohol), tri

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26

Acikgoz, Canet. "Synthesis Of Ferrocenyl Cycloheptadienones." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/3/12606365/index.pdf.

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SYNTHESIS OF FERROCENYL CYCLOHEPTADIENONES A&ccedil<br>ikg&ouml<br>z, Canet M.S., Department of Chemistry Supervisor: Assoc. Prof. Dr. Metin Zora August 2005, 85 pages Synthesis of seven-membered ring systems such as cycloheptadienones has attracted a great deal of attention in organic chemistry since they are present in a variety of biologically important molecules. Incorporation of the essential structures of such compounds with a ferrocene moiety instead of an aryl group could provide subtances with enhanced antitumor activities since some ferrocene derivatives have already proved to b

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27

He, Xiaoming, and 何晓明. "Design, synthesis and characterization of alkynyl- and thiolato-gold (I) complexes with various receptor groups for host-guestchemistry." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2010. http://hub.hku.hk/bib/B43571979.

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28

楊覺茵 and Kok-yan Yeung. "Syntheses, photophysics and photochemistry of alkynyl-, sulfido- and selenido- platinum(II) complexes." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1996. http://hub.hku.hk/bib/B31236388.

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29

Yeung, Ching-lam Margaret, and 楊靖琳. "Design and synthesis of luminescent alkynylplatinum (II) terpyridine complexes and their function as optical probes for biomolecules and ions : from self-aggregarion, supramolecular assembly to host-guest chemistry." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2013. http://hdl.handle.net/10722/208590.

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A number of cationic water-soluble alkynylplatinum(II) terpyridine complexes, [Pt(tpy){C≡CCH2OC6H3-(CH2OH)2-3,5}]OTf, [Pt(tBu3tpy){C≡CCH2OC6H3- (CH2OH)2-3,5}]Cl, [Pt(tpy){C≡CCH2OC6H4-(CH2OH)-4}]OTf, [Pt(tpy){C≡CC6H3- (CH2OH)2-3,5}]OTf, [Pt(tpy){C≡CC6H4-(CH2OH)-4}]OTf, [Pt(tpy)(C≡C－C≡CH)]OTf and [Pt(tpy){C≡CC6H4(CH2NMe3)-4}](OTf)2, have been synthesized. Phosphate anion derivatives of polyanionic nature, e.g. adenosine triphosphate and tyrosine-containing phosphopeptide, were employed to investigate the induced supramolecular helical assembly behaviors of several of the water-soluble pla

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30

Lancaster, Simon John. "Synthesis, structure and catalytic activity of cationic zirconium and hafnium alkyl complexes." Thesis, University of East Anglia, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.297046.

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31

Hung, Faan-fung, and 孔繁峰. "Luminescent platinum(II), palladium(II) and gold(III) complexes containing isocyanide, alkynyl and N-heterocyclic carbene ligands : synthesis, photophysical properties and material applications." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/206318.

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32

Steiger, George Edward. "Synthesis and thermal decomposition of alkyl-olefin chelate complexes of iron and ruthenium." Diss., Georgia Institute of Technology, 1992. http://hdl.handle.net/1853/28052.

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33

Chan, Ka-man Carmen. "Design and synthesis of luminescent branched multinuclear platinum(II) alkynyl complexes and the study of their two-photon absorption properties." Click to view the E-thesis via HKUTO, 2010. http://sunzi.lib.hku.hk/hkuto/record/B43703653.

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34

Wright, William R. H. "Synthesis, characterization and reactivity of molybdenum and tungsten imido complexes of relevance to alkene dimerization." Thesis, Durham University, 2009. http://etheses.dur.ac.uk/2030/.

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This thesis describes a range of investigations undertaken with the aim of increasing insight into alkene dimerization systems formed via reaction of WCI(_6) and an aniline. Chapter 1 introduces alkene dimerization systems based on reaction of WCI(_6) with an amine and an Et(_x)AICI(_2-x) co-initiator. As imido complexes are postulated to form in situ in such WCI(_6) -based dimerization systems, the imido chemistry of group VI has briefly been reviewed. Finally the aims of this work are outlined. Chapter 2 outlines a comparative investigation, examining the capacity of a range of discrete moly

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35

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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36

Jaggar, Andrew James. "The synthesis and reactions of cationic alkyl complexes of group(IV) transition metals." Thesis, University of East Anglia, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.332355.

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37

Chan, Ka Wang. "Synthesis and reactivity of iridium, rhodium and ruthenium alkyl complexes containing 2,2'-bipyridine /." View abstract or full-text, 2008. http://library.ust.hk/cgi/db/thesis.pl?CHEM%202008%20CHANK.

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38

Hui, Chi-kuen, and 許志權. "Design and synthesis of novel classes of alkynyl-containing platinum (II) complexes as building blocks for supramolecular assemblies andhost-guest chemistry." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2003. http://hub.hku.hk/bib/B31244257.

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39

Bitcon, Caroline. "Synthesis and redox properties of organometallic alkynyl complexes of molybdenum, tungsten, iron and ruthenium." Thesis, University of Manchester, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.328284.

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40

Wood, Mark Christopher. "Synthesis of chiral bis(amidate)bis(amido) titanium and zirconium complexes for catalyzed asymmetric alkene hydroamination." Thesis, University of British Columbia, 2006. http://hdl.handle.net/2429/31695.

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Recent advances in transition metal and lanthanide catalyzed hydroamination have changed the way people think about the formation of C-N bonds. As a major contribution to this area of research, we have synthesized the first neutral group 4 precatalysts capable of enantioselective alkene hydroamination. We took advantage of a modular amidate ligand set to alter both the electronic and steric properties of the precatalysts. The amidate ligands employed in these catalysts were synthesized by reacting an axially chiral 2,2'diamino-6,6'-dimethylbiphenyl diamine with a corresponding acyl chloride or

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41

Lam, Chan-fung. "Synthesis, optical and luminescence studies of rhenium(I) diimine alkynyl complexes and their utilization as building blocks for the assembly of multinuclear and mixed-metal complexes." Click to view the E-thesis via HKUTO, 2005. http://sunzi.lib.hku.hk/hkuto/record/B32010564.

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42

Lo, Hiu-suet, and 盧曉雪. "Design and syntheses of luminescent alkynyl complexes containing multinuclear platinum (II) and coinage metal centres: from photophysics to host-guest chemistry andsupramolecular architectures." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2009. http://hub.hku.hk/bib/B41633714.

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43

Lee, Kwok-ming, and 李國明. "Synthesis, characterization and photophysical properties of chalcogenido, phosphinidene and alkynyl complexes of gold (I) and itscongener and their supramolecular assembly arising from metal--metalinteractions." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2011. http://hub.hku.hk/bib/B45983422.

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44

Bramananthan, Nicola. "Synthesis and catalytic reactivity of ruthenium and rhodium N-alkyl substituted N-heterocyclic carbene complexes." Thesis, University of Bath, 2014. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.629667.

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This thesis describes the synthesis and stoichiometric/catalytic reactivity of Ru and Rh N-alkyl substituted N-heterocyclic carbene complexes. In an effort to make new Ru(NHC)x (x = 1-4) complexes, a range of Ru halide precursors, including Ru(DMSO)4Cl2 and Ru(PPh3)3Cl2, were combined with N-alkyl substituted carbenes. Treatment of Ru(PPh3)3Cl2 with IiPr2Me2 or ItBu resulted in C-H activation of the NHCs to form Ru(IiPr2Me2)2(IiPr2Me2’)Cl and Ru(ItBu’)(PPh3)2Cl respectively. C-H activation also took place with Ru(DMSO)4Cl2 and IEt2Me2 to give Ru(IEt2Me2’)(DMSO)3Cl. This underwent substitution

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45

Gietz, Twyla Mae, and University of Lethbridge Faculty of Arts and Science. "Lithium complexes of ketoimines and novel alkynyl imines and diimines : discoveries in the attempted synthesis of PACNAC." Thesis, Lethbridge, Alta. : University of Lethbridge, Dept. of Chemistry and Biochemistry, c2010, 2010. http://hdl.handle.net/10133/2481.

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Two different methodologies were used to attempt the synthesis of a novel P‐N ligand, denoted as PACNAC for the similarity to the analogous NACNAC and ACAC ligands. Although the synthesis of PACNAC was not successful, each methodology led to interesting discoveries. First, a number of lithium complexes of ketoimines were isolated and studied by Xray crystallography and NMR spectroscopy revealing some interesting substituent based effects on the structure, solubility and solution state behaviour. The X‐ray data of the two known and two related novel ketoimines were also collected and compared t

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46

0gweno, Aloice 0. "Synthesis, characterization and catalytic application of carbonyl complexes of molybdenum and tungsten in epoxidation of some alkenes." University of the Western Cape, 2010. http://hdl.handle.net/11394/8214.

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>Magister Scientiae - MSc<br>In this thesis we describe the synthesis of several carbonyl complexes of molybdenum and tungsten, compounds (Cl-ClO). The compounds Cl- C4 are zero valent carbonyl complexes containing N-base ligands prepared by following a common synthetic procedure. Compounds Cl and C2 were metal pentacarbonyl of 3-(1-methylpyrrolidin-2-yl) pyridine while C3 and C4 are metal tetracarbonyl complexes of 3, 5- dimethylpyrazole, (M=Mo, W). The compounds C5-C10 are divalent metal carbonyl complexes. Compounds CS and C6 were 3,5-dimethylpyrazole dibromotricarbonyl metal complexes prep

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47

Tao, Chi-hang, and 陶志恆. "Synthesis and luminescence studies of branched carbonrich platinum(II)and palladium(II) alkynyl complexes: versatile building blocks for multinuclear assemblies." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2004. http://hub.hku.hk/bib/B31246011.

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48

Briggs, Paula Marie 1971. "Synthesis, reactivity and structural studies of early transition metal alkyl and alkylidene complexes in pi-loaded environments." Diss., The University of Arizona, 1998. http://hdl.handle.net/10150/282676.

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Cyclopentadienyl bis(imido) complexes of molybdenum, prepared from Mo(=NAr)₂Cl₂(THF)₂ (Ar = 2,6-diisopropylphenyl) and one equivalent NaCp or LiCp’ [Cp=η⁵- C₅H₅ (1), Cp’ = η⁵- C₅H₄CH₃ (7)], are described. These complexes undergo metathesis with alkyl Gringard reagents to produce the alkyl derivatives CpMo(=NAr)₂R [R = Me (2), Et (3), ⁱPr (4), allyl (5)] or Cp’Mo(=NAr)₂Me (8). Complexes 1-8 do not exhibit reactivity similar to their isolobal tris(imido) analogs and are unreactive towards additional electrophiles and nucleophiles under a variety of conditions. An unprecedented terminal cyclopen

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49

Mallors, Ruth Louise. "Alkyne and alkyne-arene complexes of ruthenium." Thesis, University of Edinburgh, 1995. http://hdl.handle.net/1842/15261.

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The introduction begins with an out-line of the cluster surface analogy and looks at the importance of studying small organic molecules on clusters to attain a greater understanding of metallic surfaces. The Chapter goes on to look at the activation of alkynes upon coordination to a cluster and assesses the diverse behaviour of alkynes as ligands, some electron counting considerations are considered. Reaction procedures employed in the synthesis of cluster-alkyne complexes are compared highlighting pros and cons of the different routes. The Chapter concludes with a brief synopsis on the cluste

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Au, Ka-man, and 區嘉雯. "Luminescent cyclometalated gold (III) complexes with ancillary N-heterocyclic carbene and alkynyl ligands : from design, synthesis, photophysics to supramolecular assembly and functions." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2012. http://hdl.handle.net/10722/207995.

Full text

Abstract:

A library of luminescent cyclometalated gold(III) complexes containing various bis-cyclometalating R-C^N^C ligands derived from 2,6-diphenylpyridine and ancillary alkynyl ligands, [Au(R-C^N^C)(C≡CR’)], has been synthesized. Some of the complexes have been structurally determined by X-ray crystallography. These complexes were found to exhibit intense emission in dichloromethane solution at 298 K, originating from metal-perturbed triplet intraligand (IL) excited states of the R-C^N^C ligand, with substantial charge transfer character from the aryl moiety to the pyridyl ring. In the presen

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