Non-Covalent Weak Interactions in Group IV, PT(II) and Au(i) Organometallic Complexes
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Home > Mathematics and Science Textbooks > Chemistry > Non-Covalent Weak Interactions in Group IV, PT(II) and Au(i) Organometallic Complexes: Synthesis, Structures and Properties
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Non-Covalent Weak Interactions in Group IV, PT(II) and Au(i) Organometallic Complexes: Synthesis, Structures and Properties

Non-Covalent Weak Interactions in Group IV, PT(II) and Au(i) Organometallic Complexes: Synthesis, Structures and Properties


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This dissertation, "Non-covalent Weak Interactions in Group IV, PT(II) and AU(I) Organometallic Complexes: Synthesis, Structures and Properties" by Chi-fai, Kui, 居智輝, 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. Abstract: Abstract of thesis entitled NON-COVALENT WEAK INTERACTIONS IN GROUP IV, PT(II) AND AU(I) ORGANOMETALLIC COMPLEXES: SYNTHESIS, STRUCTURES AND PROPERTIES Submitted by Kui Chi Fai For the degree of Doctor of Philosophy at The University of Hong Kong in June 2005 The syntheses, characterizations and spectroscopic properties of Group IV, platinum(II) and gold(I) complexes containing cyclometalated ligands are described. The intra-/intermolecular non-covalent interactions and metal-metal interactions in these complexes have been examined by various spectroscopic means. The olefin polymerization catalytic properties of tridentate cyclometalated Group IV complexes, namely [M(C DEGREESN DEGREESO)(CH Ph) ] [HC DEGREESN DEGREESOH = 2-(2'-hyroxyaryl)-6-arylpyridine and 2 2 derivatives; M = Ti, Zr] can be tuned through modifications of the cyclometalating C DEGREESN DEGREESO ligands. A first direct observation of weak intramolecular C-H...F-C contacts in neutral [Zr( C DEGREESN DEGREESO)(CH Ph)] and cationic 2 2 F + - [Zr( C DEGREESN DEGREESO)(CH Ph)] [PhCH B(C F ) ] polyolefin procatalysts is reported here. 2 2 6 5 3 Their molecular structures have been elucidated by X-ray and neutron diffraction crystallography showing the existence of intramolecular C-H...F-C hydrogen bonding, which has also been suggested by NMR measurements. The reactivity of [M(C DEGREESN DEGREESO)(CH Ph) ] [M = Ti, Zr] towards ethylene and 1-hexene polymerization as 2 2 well as ethylene-propylene and ethylene-norbornene copolymerization is described. As the study of attractive interactions between a functionalized ancillary ligand and a growing polymer chain has become a novel concept in olefin polymerization reactions, the results mentioned above can provide strong evidence for designing new catalysts for the precise control of olefin polymerization. The [(R-C DEGREESN DEGREESC)Pt(DMSO)] and [(R-C DEGREESN DEGREESC) Pt (-dppm)] [R-C DEGREESN DEGREESCH = 2 2 2 2,6-di-(2'-naphthyl)pyridine and derivatives] complexes have been prepared. Among the [(R-C DEGREESN DEGREESC) Pt (-dppm)], the crystal lattice of [(C DEGREESN DEGREESC) Pt (-dppm)] has 2 2 2 2 accessible solvent channels (ca. 6.0 4.6 A) and its desolvated form displays a facile and reversible vapoluminescent response upon exposure to VOCs. Comparative PXRD studies showed that desolvation of crystal [(C DEGREESN DEGREESC) Pt (-dppm)] led to a 2 2 more condensed packing of the molecules, which is stabilized by extensive intra-/intermolecular C-H---π and π---π interactions. These extensive weak and reversible interactions could direct the supramolecular assembly of molecular frameworks and fundamentally affect the emission properties of Pt complexes in solid state. The crystal structure and photophysical properties of the [(R-C DEGREESN DEGREESN)PtCl] and [(R-C DEGREESN DEGREESN) Pt (-dppm)](ClO ) (R-C DEGREESN DEGREESNH = 3-(6'-(2"-naphthyl)-2'-pyridyl) 2 2 4 2 isoquinoline and derivatives) are examined. The extending π-conjugated C DEGREESN DEGREESN ligand offers favorable photophysical characteristics compared to 2,2':6',2"-terpyridine and 6-phenyl-2,2'-bpyridine in planar platinum(II) systems. The high thermal stability of [(R-C DEGREESN DEGREESN)PtCl] reveals that all these materials are suitable for thin film fabrication using chemical vapour deposition. [(C DEGREESN DEGREESC)Au (-dppm)]X [X = Cl, ClO and PF] and 3 2 4 6 [(C DEGREESN DEGREESC) Au (-Ph PC CPPh )] [C DEGREESN DEGREESCH = 2,6-dipheny


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Product Details
  • ISBN-13: 9781361234822
  • Publisher: Open Dissertation Press
  • Publisher Imprint: Open Dissertation Press
  • Height: 279 mm
  • No of Pages: 432
  • Sub Title: Synthesis, Structures and Properties
  • Width: 216 mm
  • ISBN-10: 1361234822
  • Publisher Date: 26 Jan 2017
  • Binding: Paperback
  • Language: English
  • Spine Width: 22 mm
  • Weight: 993 gr


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Non-Covalent Weak Interactions in Group IV, PT(II) and Au(i) Organometallic Complexes: Synthesis, Structures and Properties
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