Download or read book Steric Control in Copper I Thioether Coordination Chemistry written by Keily Heredia and published by . This book was released on 2006 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: The tetradentate thioether Si(CH[subscript]2SBu[superscript]t)[subscript]4 was used to synthesize the complete series of copper(I) complexes Cu[subscript]2Si(CH[subscript]2SBu[superscript]t)[subscript]4X[subscript]2 (X = C1, Br, I). Interestingly, a single X-ray diffraction study of the chloro derivative revealed the presence of both four-coordinate tetrahedral and three-coordinate trigonal planar copper centers. The adamantyl-substituted dithioether Me[subscript]2Si(CH[subscript]2SAd)[subscript]2 has been readily synthesized and it is the first member of the Me[subscript]2Si(CH[subscript]2SR)[subscript]2 (R = alkyl, aryl) family of ligands to be structurally characterized. Reactivity studies towards monovalent coinage metal ions have produced simple 1:1 and 1:2 complexes {Me[subscript]2Si(CH[subscript]2SAd)[subscript]2}CuX (X = C1, Br, I), and [Cu{Me[subscript]2Si(CH[subscript]2SAd)[subscript]2}[subscript]2]PF[subscript]6. Significantly, the bulky substituents on the thioether preclude the generation of polymeric species such as those isolated for R = Me and result instead in the formation of rare examples of three-coordinate trigonal planar Cu(I) thioether complexes. Furthermore, these are the first such complexes exhibiting [CuS[subscript]2X] coordination spheres. In a similar vein, the dinuclear gold complexes Au[subscript]2{Me[subscript]2Si(CH[subscript]2SAd)[subscript]2}X[subscript]2 (X = C1, Br), each of which displays a fairly strong intramolecular Au...Au aurophilic interaction, are obtained instead of the polymeric species isolated for closely related but less sterically demanding thioether ligands [e.g., Me[subscript]2Si(CH[subscript]2SMe)[subscript]2]. The new complexes have been characterized by a variety of analytical and spectroscopic techniques, including electrospray ionization mass spectroscopy (ESIMS). An overview of the coordination chemistry of Me[subscript]2Si(CH[subscript]2SAd)[subscript]2 towards other transition metal ions such as Ag(I), Cd(II) and Hg(II) will be also discussed.
Download or read book Copper Coordination Chemistry written by Kenneth D. Karlin and published by . This book was released on 1983 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Coordination Chemistry of Thioether pyridazine Macrocycles II written by Liqin Chen and published by . This book was released on 1992 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Original Reactivity of Copper and Gold Complexes written by Maximilian Joost and published by Springer. This book was released on 2015-06-13 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis addresses the coordination chemistry and reactivity of copper and gold complexes with a focus on the elucidation of (i) the metal-mediated activation of σ-bonds and (ii) the migratory insertion reaction. Both processes are of considerable importance in organometallic chemistry, but remain elusive for Cu and Au complexes. In this work, the author contributes significant advances: The first σ-SiH complexes of copper are experimentally and computationally characterized, yielding valuable insights into σ-bond activation processes for copper. Evidence for a highly unusual migratory syn insertion of unsaturated organic molecules into the gold-silicon bond of silylgold (I) complexes is provided and the corresponding mechanism identified. The intermolecular oxidative addition of σ-SiSi, σ-CC and σ-CX (X=halogen) bonds with molecular gold (I) complexes is studied in detail, effectively demonstrating that this reaction, usually considered to be impossible for gold, is actually highly favored, provided an adequate ligand is employed. The use of small-bite angle bis (phosphine) gold (I) complexes allows for the first time the oxidative addition of σ-CC and σ-CX bonds for gold (I). These results shed light on an unexpected reactivity pattern of gold complexes and may point the way to 2-electron redox transformations mediated by this metal, opening up new perspectives in gold catalysis.
Download or read book Copper Oxygen Chemistry written by Kenneth D. Karlin and published by John Wiley & Sons. This book was released on 2011-08-24 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covers the vastly expanding subject of oxidative processes mediated by copper ions within biological systems Copper-mediated biological oxidations offer a broad range of fundamentally important and potentially practical chemical processes that cross many chemical and pharmaceutical disciplines. This newest volume in the Wiley Series on Reactive Intermediates in Chemistry and Biology is divided into three logical areas within the topic of copper/oxygen chemistry— biological systems, theory, and bioinorganic models and applications—to explore the biosphere for its highly evolved and thus efficient oxidative transformations in the discovery of new types of interactions between molecular oxygen and copper ion. Featuring a diverse collection of subject matter unified in one complete and comprehensive resource, Copper-Oxygen Chemistry probes the fundamental aspects of copper coordination chemistry, synthetic organic chemistry, and biological chemistry to reveal both the biological and chemical aspects driving the current exciting research efforts behind copper-oxygen chemistry. In addition, Copper-Oxygen Chemistry: Addresses the significantly increasing literature on oxygen-atom insertion and carbon-carbon bond-forming reactions as well as enantioselective oxidation chemistries Progresses from biological systems to spectroscopy and theory, and onward to bioinorganic models and applications Covers a wide array of reaction types such as insertion and dehydrogenation reactions that utilize the cheap, abundant, and energy-containing O2 molecule With thorough coverage by prominent authors and researchers shaping innovations in this growing field, this valuable reference is essential reading for bioinorganic chemists, as well as organic, synthetic, and pharmaceutical chemists in academia and industry.
Download or read book The Inorganic and Bioinorganic Chemistry of Copper Thioether Complexes written by Jeffrey Hirsch and published by . This book was released on 2001 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Chemistry of Copper Silver and Gold written by A. G. Massey and published by Elsevier. This book was released on 2017-01-31 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Chemistry of Copper, Silver and Gold deals with the chemistry of copper, silver, and gold and covers topics ranging from the occurrence and metallurgy of copper to copper compounds and compounds containing copper-metal bonds, compounds of silver, and gold alloys. Hydrides and halides, cyanides and oxides, hydroxides and oxyacids, and thiocyanates and selenocyanates are also discussed. This volume is comprised of three chapters and opens with a brief history of copper, along with its occurrence and metallurgy, analysis, and compounds. The next chapter is devoted to silver and its compounds, while the last chapter describes gold, its isotopes and alloys, chemistry, and gold hydrides and halides, cyanides and oxides, hydroxides and oxyacids. Gold sulfides, selenides and tellurides, and nitrates are also considered, along with nitrides, azides, phosphides, and arsenides; and thiosulfates, selenates, selenites, thiocyanates, and selenocyanates. The final sections look at gold complexes and the organometallic and analytical chemistry of gold. This book will be a valuable source of information for inorganic chemists.
Download or read book Symposium on Copper Coordination Chemistry written by Symposium on Copper Coordination Chemistry: Bioinorganic Perspectives (1992, Baltimore, Md.) and published by . This book was released on 1992 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Photochemistry and Photophysics of Coordination Compounds I written by Vincenzo Balzani and published by Springer. This book was released on 2007-07-31 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents critical reviews of the current position and future trends in modern chemical research. It offers short and concise reports on chemistry, each written by world renowned experts.
Download or read book Structure Effects in Copper Coordination Compounds of Ligands with Thioether Aromatic Nitrogen and Ether Donors written by Shuang Liu and published by . This book was released on 1992 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Coordination Chemistry of Thioether pyridazine Macrocycles I Synthetic Structural and Spectroscopic Studies of Cu II and Cu I Complexes of Novel Thioether pyridazine Macrocycles that Contain Two Or Three Pyridazine Subunits written by Liqin Chen and published by . This book was released on 1992 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Master s Theses Directories written by and published by . This book was released on 2006 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Education, arts and social sciences, natural and technical sciences in the United States and Canada".
Download or read book Symposium on Copper Coordination Chemistry Bioinorganic Perspectives written by Symposium on Copper Coordination Chemistry: Bioinorganic Perspectives (1992, 1992, Baltimore, Md.) and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Copper II Coordination Chemistry of Cyclic Pseudo Hexa and Octapeptides written by Nina Dovalil and published by . This book was released on 2010 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Copper Coordination Chemistry Biochemical and Inorganic Perspectives written by KD Karlin (ed) and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Copper I Coordination Chemistry of Tris mercaptoimidazolyl Mesitylenes written by Javier Ulises Pacheco and published by . This book was released on 2010 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: To study the functional properties of copper proteins several copper(I) complexes have been used for modeling biological sites. A new family of neutral tris(thione) ligands, the tris(mercaptoimidazolyl)mesitylenes R3TmmesMe (R = H, Me, Et) have been synthesized. The ligand system presented good solubility in organic solvents and stability. The corresponding copper(I) complexes were synthesized and characterized in the search for potential synthetic analogues of the metal center in copper enzymes. The effect of the alkyl substituent on the aromatic ring showed to have an unexpected effect on the reactivity of these ligands towards copper(I) ions. Reactivity studies of these complexes were done with different donor ligands like thiolates, tetramethylthiourea, triphenylphosphine and pyridine. Reactions with silver(I) and cobalt(II) were also tried to study the relationship of the ligand system with biologically relevant metals. The data and structures obtained is compared and discussed in the context of obtaining a mononuclear complex.
Download or read book Copper Coordination Chemistry with Pyridyl Imine Ligands and Their Application in Aerobic Oxidation Reactions written by Zhenzhong Hu and published by . This book was released on 2012 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt:
