Download or read book Synthesis and Characterization of Monomeric Gold I Complexes written by Corey R. Hunter and published by . This book was released on 2004 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Au(I) monomers are key precursors to the formation of heterobimetallic Au(I)-metal species which have great potential as OLED's (organic light-emitting diode) displays, VOC (volatile organic compound) sensors, and antiarthritis drugs. The monomeric compounds were characterized by 1H and 31P NMR spectroscopy, and the connectivity of a representative sample was established using 1H-1H correlation experiments.
Download or read book The Synthesis Characterization and Reactivity of Heterobimetallic Gold Hydride Cluster Complexes of Ruthenium Osmium Rhodium and Iridium written by Bruce Dean Alexander and published by . This book was released on 1988 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Characterization of Luminescent Gold III Complexes written by Amanda N. Sulicz and published by . This book was released on 2017 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: The chemistry of cyclometalated gold(III) has been relatively slow to emerge, but recent advances in catalyst and material design have driven a renewed interest. Reported here are synthetic, structural, and optical studies of cyclometalated gold(III) aryl complexes. These new complexes show ligand-centered luminescence that is perturbed by the heavy-atom effect of gold. Traditionally, metal-carbon bond formation relied on organometallic complexes of electropositive elements, including lithium and magnesium. The easily reducible nature of gold(III) often interferes with these conventional reagents, thus resulting in the use of toxic metals like mercury or thallium. Reported here is the use of palladium-catalyzed Suzuki-Miyaura cross-coupling for the attachment of aryl ligands to cyclometalated gold(III) chloride complexes. The resulting di- and mono-arylated species were luminescent. Several complexes have been crystallographically characterized. Luminescent derivatives of a previously published gold(III) chloro precursor, initially reported for catalytic purposes, were prepared through boron transmetalation reactions. Complexes bearing both aryl and cyanide ligands were synthesized. These luminescent materials are diamagnetic and were be characterized by multinuclear NMR, absorption and emission spectroscopies (including time-resolved emission), and by X-ray diffraction crystallography. The synthesized gold(I) complexes were designed to display reverse saturable absorption and be a two photon acceptor. The BTF (BTF = 2-(9,9’-diethyl-9H-fluoren-2-yl)-benzothiazole) ligand was chosen as it has been previously demonstrated to have favorable photophysical effects on platinum(II) and ruthenium(II) complexes for applications in photodynamic therapy and optical power limiting (OPL). Gold(I) complexes with the BTF ligand are sought for potential OPL applications. Synthesized complexes are luminescent and were characterized by multinuclear NMR, absorption and emission spectroscopies, photoluminescent quantum yields, time-resolved emission. Two complexes were crystallographically characterized.
Download or read book Supported Molecular Gold Complexes and Clusters written by Javier Guzman and published by . This book was released on 2003 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Supported Gold Complexes and Clusters written by Juan Carlos Fierro-Gonzalez and published by . This book was released on 2005 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis Characterization and Biological Evaluation of DNA targeted Gold I Complexes written by Lauren Christine Eiter and published by . This book was released on 2007 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Characterization of Dinuclear Gold I Complexes Containing Dithiolates and Phosphines Or Bis Diphosphine Donor Ligands written by Rosa Maria Davila and published by . This book was released on 1993 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Characterization of Neutral Dinuclear Gold I Complexes written by Ratnavathany Narayanaswamy and published by . This book was released on 1993 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis Characterization and Photophysical Properties of Chalcogenido Phosphinidene and Alkynyl Complexes of Gold I and Its Congener and Their Supramolecular Assembly Arising from Metal Metal Interactions written by Kwok-Ming Lee and published by . This book was released on 2017-01-26 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Synthesis, Characterization and Photophysical Properties of Chalcogenido, Phosphinidene and Alkynyl Complexes of Gold (I) and Its Congener and Their Supramolecular Assembly Arising From Metal--metal Interactions" by Kwok-ming, Lee, 李國明, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. DOI: 10.5353/th_b4598342 Subjects: Gold compounds - Synthesis Complex compounds - Synthesis Photochemistry Supramolecular chemistry
Download or read book Synthesis Characterization and Photoluminescence Studies of Gold one Complexes written by Tiffany Anne Grant and published by . This book was released on 1998 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book New Chemistry with Gold nitrogen Complexes written by Hanan Elsayed Abdou and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrogen ligands have been little studied with gold(I) and almost no chemistry has been described using anionic bridging nitrogen ligands. This dissertation concerns the impact of the bridging ligands amidinate, ArNHC(H)NAr, on the chemistry of gold(I) and, in particular, the effect of substituents on the molecular arrangement. The electronic vs. steric effect of the substituents on the molecular arrangement of gold(I) amidinates complexes is studied in detail. Tetra-, tri-, and dinuclear gold(I) amidinate complexes are synthesized and characterized using X-ray diffraction. Spectroscopic and electrochemical studies of the amidinate complexes are described. Catalytic studies suggest that gold amidinates and related gold nitrogen complexes are the best catalyst precursors for CO oxidation on TiO2 surface reported to date (87% conversion). The dinuclear gold(I) amidinate complex with a Au ... Au distance of 2.711(3) [angstrom] is rare. To our knowledge, there is only one other example of a symmetrical dinuclear gold(I) nitrogen complex. Oxidative-addition reactions to the dinuclear gold(I) complex, [Au2(2,6-Me2-form)2] are studied in detail and result in the formation of gold(II) complexes. The gold(II) amidinate complexes are the first formed with nitrogen ligands. The complexes are stable at room temperature. Mixed ligand tetranuclear gold(I) clusters and tetranuclear mixed Au-Ag metal clusters of pyrazolate and amidinate ligands are synthesized and characterized using Xray diffraction.
Download or read book Synthesis Crystallization and Characterization of Gold I Complexes with Studies on Luminescence Polymorphism and Response to Environmental Stimuli written by Phuong (Lucy) Minh Cam Luong and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The research presented in this dissertation focuses on the synthesis, crystallization, and characterization of various gold(I) complexes. With every gold(I) crystal, intensive studies were conducted to uncover any luminescence, polymorphism, and/or response to environmental stimuli such as temperature, vapor, and pressure. All doctoral research performed in the Balch lab, including collaborations with other members as well as outside research groups, is not fully presented in this dissertation. A list of publications can be found at the end. Chapter 1 explores the role of anions and mixture of anions in crystals of bis(cyclohexylioscyanide) gold(I) cations, [(C6H11NC)2Au]+. A new crystal was synthesized and characterized with the (SbF6)− noncoordinating anion. The crystal displayed no known polymorphism unlike its previously synthesized (PF6)− and (AsF6)− analogues. However, by mixing combinations of anions and ratios of anions, an isostructural set of crystals were produced. Not only were thermochromic trends observed for mixed anion crystals with known thermochromic species but unexpected thermochromic properties appeared in mixed anion crystals that contained species with no thermochromism. In Chapter 2, the vapochromic and vapoluminescent properties of both [(C6H11NC)2Au](PF6) and [(C6H11NC)2Au](AsF6) were further investigated to uncover the first observed single-crystal-to-single-crystal phase transition, verified by single crystal X-ray diffraction, of both species. A rare case of a two-polymorph single crystal of each species was achieved as well. With no vapor molecules incorporated in these crystals, the mechanism of conversion was further examined at the macroscopic, microscopic, and atomic level to understand how these solvent-free crystals transform from solvent vapor exposure. Chapter 3 focuses on methods to isolate [(C6H11NC)2Au]+ to form non-luminescent crystals, which was achieved through bulky noncoordinating anions and solvent molecules. Newly synthesized [(C6H11NC)2Au](BArF24) was crystallized but showed no further interesting properties other than purposely isolating aurophilic interactions. However, the first solvates of these [(C6H11NC)2Au]+ series, C6H6·[(C6H11NC)2Au](AsF6) and C6H6·[(C6H11NC)2Au](SbF6), were crystallized that displayed a unique turning on of luminescence when left to dry that matched their solvent-free forms, as verified by powder X-ray diffraction, infrared spectroscopy, and fluorescence spectroscopy. Differing from the other studies, Chapter 4 examines the structure and luminescence of three-coordinate 2,2'-bipyridine gold(I) tertiary phosphine crystals. Separate isomorphic series of [(Ph3P)Au(bipy)]XF6 and [(Et3P)Au(bipy)]XF6 (where X = P, As, or Sb) along with binuclear [[mu]2-bipy(AuPPh3)2](PF6)2 were crystallized and showed no luminescence, which is unlike that of known strongly luminescent gold(I) phosphines. However, the three-coordinate [(Ph3P)Au(bipy)]XF6 and [(Et3P)Au(bipy)]XF6 complexes all displayed significantly unsymmetrical coordination of the gold(I) to the two nitrogen atoms in the 2,2'-bipyridine ligand. These large unsymmetrical distances were further investigated.
Download or read book Synthesis and Characterization of Square planar Gold III Complexes with Various Ligands written by Denise Michelle Motley and published by . This book was released on 2008 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Characterisation of Some Gold I Complexes with Difunctional Donor Ligands written by Susanna Elizabeth Thwaite and published by . This book was released on 2004 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Physical Characterization of Silver I and Triethylphosphine Gold I Complexes written by Mohamed Muftah El-Etri and published by . This book was released on 1978 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis Characterization and Structure Determination of New Gold I Complexes Containing Phosphine and Thiolate Ligands written by Sandra I. Cuadrado Roussel and published by . This book was released on 1989 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis and Characterization of New Gold and Silver Complexes Based on P N and P S Ligands written by Vashen Moodley and published by . This book was released on 2013 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
