No description available.

Thesis (Ph.D.)--University of Delaware, 2006. / Principal faculty advisor: Klaus H. Theopold, Dept. of Chemistry & Biochemistry. Includes bibliographical references.

<p> The methylation of three isomeric hexasulphur diimides under basic conditions has been investigated. Both mono- and dimethylated products have been obtained from the 1, 5- and 1,4-hexasulphur diimides. The anion formed from the 1,3 isomer was found to undergo decomposition, the major products being polysulphides and N-methyl heptasulphur imide. The usefulness of proton NMR, mass spectra, and infrared spectra in conjunction with these compounds has been considered.</p> / Thesis / Master of Science (MSc)

Chan, Ka Po. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2007. / Includes bibliographical references. / Abstracts in English and Chinese. / Table of contents --- p.vi / Acknowledgements --- p.i / Abstract --- p.ii / 摘要 --- p.iv / List of Compounds Synthesized --- p.xi / Abbreviation --- p.xii / Chapter Chapter 1 --- Synthesis and characterization of pyrazyl-Iinked bis(phosphoranoimido) main group 14 and 13 metal complexes / Chapter 1.1 --- Introduction --- p.1 / Chapter 1.1.1 --- A general review of phosphoranoimine ligands --- p.1 / Chapter 1.1.2 --- A general review of group 14 metal complexes containing phosphoranoimine ligands --- p.8 / Chapter 1.1.3 --- A general review of group 13 metal complexes containing phosphoranoimine ligands --- p.10 / Chapter 1.2 --- Objectives --- p.12 / Chapter 1.3 --- Results and Discussion --- p.14 / Chapter 1.3.1.1 --- Synthesis of pyrazyl-Iinked bis(phosphoranoimine) (Me3SiN=PPr'2CH2)2C4H2N2-2，3 (35) and dilithium compound [{Li(THF)2(Me3SiNPPr'2CH)}2C4H2N2-2，3}] (36) --- p.14 / Chapter 1.3.1.2 --- Spectroscopic properties of 35 and 36 --- p.15 / Chapter 1.3.1.3 --- "Molecular structure of [{Li(THF)2(Me3SiNPPr'2CH)}2C4H2N2-2,3}] (36)" --- p.16 / Chapter 1.3.2.1 --- Synthesis of stannacyclopentane [Sn{C(H)(Pr')2P=N(SiMe3)}2C4H2N2-2，3] (37) and chlorostannylene [{Sncl(Me3SiNPPr'2CH)}2C4H2N2-2，3] (38) --- p.20 / Chapter 1.3.2.2 --- Spectroscopic properties of 37 and 38 --- p.20 / Chapter 1.3.2.3 --- "Molecular structures of [Sn{C(H)(Pr')2P=N(SiMe3)}2C4H2N2-2,3] (37) and [{SnCl(Me3SiNPPr'2CH)}2C4H2N2-2,3] (38)" --- p.22 / Chapter 1.3.3.1 --- "Synthesis of asymmetric lead(II) enamido and chloro compound [{PbCl(Me3SiNPPr'2CH)}C4H2Nr2，3-(CHPPr'2Me3SiN)Pb(Me3SiN PPr'2C)C4H2N2-2,3-(CHPr'2P=NSiMe3)] (39)" --- p.28 / Chapter 1.3.3.2 --- Spectroscopic properties of 39 --- p.30 / Chapter 1.3.3.3 --- "Molecular structure of [{Pbcl(Me3SiNPPr'2CH)}C4H2N2-2,3-(CHPPr'2Me3SiN)Pb(Me3SiN PPr'2C)C4H2N2-2，3-(CHPr'2P=NSiMe3)] (39)" --- p.30 / Chapter 1.3.4.1 --- Synthesis of polymeric dilithiated cyclic germylene [Ge{C(Pr')2PN(SiMe3)Li(THF)}2(02C4H8)C4H2N2-2，3] (40) --- p.35 / Chapter 1.3.4.2 --- Spectroscopic properties of 40 --- p.37 / Chapter 1.3.4.3 --- Molecular structure of [Ge{C(Pr')2PN(SiMe3)Li(THF)}2(02C4H8)C4H2N2-2，3] (40) --- p.37 / Chapter 1.3.5.1 --- "Synthesis of bis(trimethylsilyl)amido metal compounds [{Sn{N(SiMe3)2}(Me3SiNPPr'2CH)}2C4H2N2-2,3] (41) and [{Pb{N(SiMe3)2}(Me3SiNPPr'2CH)} C4H2N2-2，3{Pb(CHPr'2P= NSiMe3){N(SiMe3)2}}](42)" --- p.41 / Chapter 1.3.5.2 --- Spectroscopic properties of 41 and 42 --- p.42 / Chapter 1.3.5.3 --- Molecular structures of [{Sn{N(SiMe3)2}(Me3SiNPPr'2CH)}2C4H2N2-2，3] (41) and [{Pb{N(SiMe3)2}(Me3SiNPPr'2CH)}C4H2Nr2，3{Pb(CHPr'2P= NSiMe3){N(SiMe3)2}}](42) --- p.43 / Chapter 1.3.6.1 --- "Synthesis of pyrazyl-linked bis(phosphoranoimido) group 13 metal compounds [{MCl2(Me3SiNPPr'2CH)}2C4H2N2-2，3] (M=A1 (43)， Ga (44)) and [{AlMe2(Me3SiNPPr'2CH)}2C4H2N2-2,3] (45)" --- p.49 / Chapter 1.3.6.2 --- "Spectroscopic properties of 43, 44 and 45" --- p.50 / Chapter 1.3.6.3 --- "Molecular structures of[{MCl2(Me3SiNPPr'2CH)}2C4H2N2-2,3] (M=A1 (43), Ga (44)) and [{AlMe2(Me3SiNPPr'2CH)}2C4H2N2-2,3] (45)" --- p.50 / Chapter 1.4 --- Experimental Section --- p.57 / Chapter 1.5 --- References for chapter 1 --- p.67 / Chapter Chapter 2 --- Reactivity of pyrazyl-Iinked bis(phosphoranoimido) heteroleptic stannylenes / Chapter 2.1 --- Introduction --- p.73 / Chapter 2.1.1 --- A general review of heteroleptic stannylenes --- p.73 / Chapter 2.2 --- Objectives --- p.80 / Chapter 2.3 --- Results and Discussion --- p.81 / Chapter 2.3.1.1 --- "Reaction of 38 with sodium cyclopentadienide: synthesis of [{Sn(η1-C5H5)(Me3SiNPPr'2CH)}2C4H2N2-2,3] (70)" --- p.81 / Chapter 2.3.1.2 --- Spectroscopic properties of 70 --- p.81 / Chapter 2.3.1.3 --- "Molecular structure of [{Sn(η1-C5H5)(Me3SiNPPr'2CH)}2C4H2N2-2,3] (70)" --- p.83 / Chapter 2.3.2.1 --- "Reaction of 41 with 3,5-di-tert-butyl-o-benzoquinone: synthesis of [{Sn{0(2,4-di-Bu1-C6H2)0}{N(SiMe3)2}(Me3SiNPPr'2CH)}2 C4H2N2-2,3] (71)" --- p.86 / Chapter 2.3.2.2 --- Spectroscopic properties of 71 --- p.87 / Chapter 2.3.2.3 --- "Molecular structure of [{Sn{0(2´ة4-di-Bu'-C6H2)0}{N(SiMe3)2}(Me3SiNPPr'2CH)}2 C4H2N2-2,3] (71)" --- p.88 / Chapter 2.4 --- Experimental Section --- p.91 / Chapter 2.5 --- References for chapter 2 --- p.93 / Chapter Chapter 3 --- "Synthesis, characterization and catalytic study of pyrazyl-linked bis(phosphoranoimido) group 4 early transition metal complexes" / Chapter 3.1 --- Introduction --- p.96 / Chapter 3.1.1 --- A general review of group 4 early transition metal complexes containing phosphoranoimine ligands --- p.96 / Chapter 3.1.2 --- A general review of olefin polymerization with group 4 metallocene catalysts --- p.99 / Chapter 3.2 --- Results and Discussion --- p.101 / Chapter 3.2.1.1 --- "Synthesis and characterization of pyrazyl-linked bis(phosphoranoimido)chloro group 4 transition metal compounds [{MCl3(Me3SiNPPr'2CH)}2C4H2N2-2,3] [M = Zr (72)，Hf (73)]" --- p.101 / Chapter 3.2.1.2 --- Spectroscopic properties of 72 and 73 --- p.101 / Chapter 3.2.1.3 --- "Molecular Structure of [{HfCl3(Me3SiNPPr'2CH)}2C4H2N2-2,3] (73)" --- p.102 / Chapter 3.2.2.1 --- "Synthesis and characterization of pyrazyl-linked bis(phosphoranoimido)amido group 4 transition metal compounds [μ-M(NMe2)2(Me3SiNPPr'2CH)C4H2N2-2,3(CHPPr'2NSiMe3) M(NMe2)3]2 [M = Zr (74), Hf (75)]" --- p.105 / Chapter 3.2.2.2 --- Spectroscopic properties of 74 and 75 --- p.106 / Chapter 3.2.2.3 --- "Molecular Structure of [μ-Zr(NMe2)2(Me3SiNPPr'2CH)C4H2N2- 2,3(CHPPr'2NSiMe3)Zr(NMe2)3]2 (74)" --- p.107 / Chapter 3.2.3.1 --- Catalytic studies of compounds 72-75 on ethylene polymerization --- p.110 / Chapter 3.3 --- Experimental Section --- p.112 / Chapter 3.4 --- References for chapter 3 --- p.116 / Appendix I / Chapter A. --- General Procedures --- p.118 / Chapter B. --- Spectroscopic and physical measurements --- p.118 / Appendix II / Table A.1. Selected crystallographic data for compounds 36-39 --- p.121 / Table A.2. Selected crystallographic data for compounds 40-43 --- p.122 / "Table A.3. Selected crystallographic data for compounds 44, 45, 70 and 71" --- p.123 / Table A.4. Selected crystallographic data for compounds 73 and 74 --- p.124

Thesis (Ph. D. in Chemistry)--Vanderbilt University, Dec. 2008. / Title from title screen. Includes bibliographical references.

Thesis (Ph.D.) - University of St Andrews, June 2009.

No description available.

This Thesis describes the synthesis and characterisation of titanium imido compounds supported by pendant arm functionalised amidinate ligands. Reactivity studies of cyclopentadienyl amidinate-imido compounds with CO2 are presented. Chapter 1 introduces transition metal imido chemistry, with a particular emphasis on imido complexes of titanium. Chapter 2 describes recent developments in the chemistry of functionalised amidinate ligands. The synthesis and characterisation of new titanium imido compounds with pendant amine functionalised amidinate ligands is described. The preparation of an amidinate ligand with a pendant propyl arm is reported. Reactions of a selection of these complexes with small molecules are presented. Chapter 3 reviews recent developments in the chemistry of cyclopentadienyl amidinate-imido compounds. The preparation of cyclopentadienyl-supported titanium imido compounds bearing pendant arm amidinate ligands is described andthereactionsofthesecompoundswithCC>2arediscussed. Kineticanddensity functional theory studies of these reactions are presented. Chapter 4 describes the synthesis and characterisation of alkyl and aryloxide titanium amidinate-imido compounds. The preparation of cationic derivatives is also described and reactions of these cationic derivatives with small molecules are discussed. Chapter 5 presents full experimental procedures for all of the syntheses and reactivity studies outlined in Chapters 2 to 4. Chapter 6 contains characterising data for all of the new compounds reported. Appendices A - K contain tables of selected crystallographic data for all new crystallographically characterised complexes described in this Thesis. Appendices L - O contain kinetics data relating to work discussed in Chapter 3.

Thesis (Ph. D.)--University of Missouri-Columbia, 1996. / Typescript. Vita. Includes bibliographical references (leaves 137-148). Also available on the Internet.

Thesis (Ph. D.)--University of Missouri-Columbia, 1996. / Typescript. Vita. Includes bibliographical references (leaves 137-148). Also available on the Internet.