Download or read book The Synthesis and Characterization of Mono and Dinuclear Platinum II Olefin Complexes Containing Pyrazole and Pyrazolato Ligands written by William Cullen Deese and published by . This book was released on 1982 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis Luminescence and Host Guest Chemistry of Mono and Dinuclear Platinum ii Complexes of Pyridyl and Diphosphine Ligands written by Pui-Ling Tang and published by . This book was released on 2017-01-27 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis Luminescence and Host guest Chemistry of Mono and Dinuclear Platinum II Complexes of Pyridyl and Diphosphine Ligands written by Pui-ling Tang and published by . This book was released on 2002 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dissertation Abstracts International written by and published by . This book was released on 1983 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis and characterization of iminic and heterocyclic ligands and their mono and di orthometallated platinum II complexes written by Peter Milano and published by . This book was released on 2006 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Comprehensive Dissertation Index written by and published by . This book was released on 1989 with total page 754 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Syntheses Characterization and Photophysical Properties of Platinum ii and Gold i Complexes Containing Ortho And Meta Oligo phenyleneethynylene Ligands written by 朱明新 and published by Open Dissertation Press. This book was released on 2017-01-27 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Syntheses, Characterization and Photophysical Properties of Platinum(II) and Gold(I) Complexes Containing Ortho- and Meta-oligo(phenyleneethynylene) Ligands" by 朱明新, Mingxin, Zhu, 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 SYNTHESES, CHARACTERIZATION AND PHOTOPHYSICAL PROPERTIES OF PLATINUM(II) AND GOLD(I) COMPLEXES CONTAINING ORTHO- AND META- OLIGO(PHENYLENEETHYNYLENE) LIGANDS Submitted by Zhu Mingxin for the degree of Doctor of Philosophy at The University of Hong Kong in March 2008 Metal complexes containing oligo(phenyleneethynylene) (PE) are of great importance in photophysics and material science. The syntheses, characterizations and photophysical properties of the light-emitting platinum(II) and gold(I) complexes with flexible ortho- and meta-PE and 2,5-diphenyl-1,3,4-oxadiazole ligands were described. Several novel dinuclear terpyridyl platinum(II) complexes with ortho-PE ligands were synthesized and their crystal structures were determined. The t t 2+ t platinum(II) complexes [( Bu tpy)Pt-(ortho-PE)-Pt( Bu tpy)] ( Bu tpy = 4,4′,4″-tri- 3 3 3 tert-butyl-2,2′ 6′,2″-terpyridine) adopted a helical conformation in their crystal structures, and their phosphorescence recorded in acetonitrile/water mixtures shifted to lower energy with enhanced intensity when the water content increased. A hydrophobic folding process was suggested for the complexes with long ortho-PE(n) (n >= 3), and the red-shifted and enhanced phosphorescence was attributed to inter- and intra-molecular π-π interactions. The mononuclear terpyridine and C DEGREESN DEGREESN capped t + platinum(II) complexes [( Bu tpy)Pt-(ortho-PE)] and [(C DEGREESN DEGREESN)Pt-(ortho-PE)] (HC DEGREESN DEGREESN = 6-phenyl-2,2′-bipyridine) were studied for comparison. A series of mononuclear and dinuclear ortho- and meta-PE gold(I) complexes, [(PCy )Au-(ortho-PE)] (PCy = tricyclohexylphosphine), [(PCy )Au-(ortho-PE)- 3 3 3 Au(PCy)], [(PCy )Au-(meta-PE)] and [(PCy )Au-(meta-PE)-Au(PCy)] were 3 3 3 3 synthesized to examine the effect of ortho- and meta-conjugation. A ππ* emission of the PE ligands was switched on at room temperature by the attachment of [Au(PCy )] fragment due to the heavy atom effect. The delayed fluorescence from the ππ* excited states of the PE ligands was observed, and a triplet-triplet annihilation pathway was proposed. The difference in conjugation of para-, ortho- and meta-PE ligation was examined by comparison of the singlet and triplet emission energies of the gold(I) complexes. By extrapolating the plot of the emission energy against the PE chain length in the complex, the triplet emission energies of poly(ortho-PE) and poly(meta-PE) were estimated to be 530 and 470 nm respectively. These complexes together with the reported [Au(PCy )] complexes containing para-PE ligands, constitute a complete class of [Au(PCy )] supported phenyleneethynylene complexes. 2+ New ortho-PE ligands were used as flexible linkers for [Pt(PEt ) ] moieties 3 2 (PEt = triethylphosphine). Three neutral platinum(II) macrocycles with the maximum ring size of 60 atoms were synthesized and their crystal structures were determined, 31 revealing decreased nuclearity when the ortho-PE length increases. The P NMR spectra of [Pt(PEt ) {ortho-PE(5)}] with a rigid conformation at various temperatures 3 2 are consistent with the calculated spectrum of ABX spin system. A series of platinum(II)-bis(triethylphosphine) complexes containing 2,5- diphenyl-1,3,4-oxadiazole moiety were synthesized, and

Download or read book Synthesis and Investigation of Pyrazole containing Platinum Complexes for the Design of Macrocyclic Molecules and Potential Two electron Reagents written by Stuart Alan Willison and published by . This book was released on 2008 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: A detailed study involving platinum(II) compounds with bis-2,6-pyrazolyl-phenyl type ligands have been undertaken in an effort to design a new architecture for building macrocyclic molecules with potentially coordinating tridentate ligands. Initial reports focused on platinum complexes with 2,6-bis-pyrazolyl-pyridine ligands. One complex, Pt(bpp)Ph +, exhibited an intense pink emission of the solid at 77 K, which is one of the first examples of a luminescent platinum compound with a bis-pyrazolyl-pyridine ligand. Herein we report the investigation of steric influence to promote C-H activation on the formation of monomeric and macrocyclic platinum(II) complexes, using methyl substituents on a series of anionic bis-pyrazolyl-phenyl ligands. Further studies of concentrated reaction mixtures at long reaction times result in exclusively trimeric products, whereas more dilute mixtures and shorter reaction times give only monomer products. Thus, careful control of the reaction conditions allows for selective activation of C-H bonds on the ligand giving isolated products of expected monomers and trimers, as well as surprising new dimeric products. In the course of our investigations of the monomeric platinum(II) products, we have discovered that four complexes react with dithiocarbamate accelerators most commonly used in latex processing, giving a colored response. Thus, the platinum complexes can be used as colorimetric indicators to detect allergenic dithiocarbamate compounds in latex products. In addition, we describe the synthesis and preliminary characterization of a potential two-electron reagent using a monomeric complex, Pt(4)Cl, and pip 2NNN, where 4 is 1,3-bis(3,5-dimethylpyrazolyl)benzene and (pip 2NNN) is 2,6-bis(piperidylmethyl)pyridine, to give Pt(4)(pip 2NNN) +.

Download or read book American Doctoral Dissertations written by and published by . This book was released on 1982 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Syntheses and Characterization of Mono and Dinuclear Complexes of Platinum Group Metals Bearing Benzene linked Bis pyrazolyl methane Ligands written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis and characterization of platinum II complexes with thiophene based ligands written by Julienne Sarabia and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Design and Synthesis of Luminescent Mono And Dinuclear Platinum ii Alkynyl Terpyridine Complexes written by Hoi-Yiu Chan and published by Open Dissertation Press. This book was released on 2017-01-27 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Design and Synthesis of Luminescent Mono- and Dinuclear Platinum(II) Alkynyl Terpyridine Complexes: From Photophysics to Aggregation and Self-assembly" by Hoi-yiu, Chan, 陳凱耀, 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 DESIGN AND SYNTHESIS OF LUMINESCENT MONO- AND DINUCLEAR PLATINUM(II) ALKYNYL TERPYRIDINE COMPLEXES - FROM PHOTOPHYSICS TO AGGREGATION AND SELF-ASSEMBLY submitted by CHAN Hoi Yiu for the degree of Doctor of Philosophy at The University of Hong Kong in August 2006 A series of mononuclear alkynylplatinum(II) terpyridyl complexes, [Pt(trpy)({C{ C} C H )]PF, [Pt(trpy)({C{ C} C H CF -4)]PF, n 6 5 6 n 6 4 3 6 [Pt(trpy)({C{ C} C H CH -4)]PF, and [Pt( Bu trpy)(C{ C C{ C C H )]PF (n = n 6 4 3 6 3 6 5 6 2, 3), have been synthesized. The X-ray crystal structures of the two forms of [Pt(trpy)(C{ C C{ C C H )]PF, [Pt(trpy)(C{ C C{ C C{ C C H CH -4)]PF and 6 5 6 6 4 3 6 [Pt( Bu trpy)(C{ C C{ C C H )]PF have been determined. Dinuclear and 3 6 5 6 trinuclear alkynylplatinum(II) terpyridyl complexes, [1,4- {Pt(trpy)C{ C} C H ](OTf), [1,4-{Pt( Bu trpy)C{ C} C H ](OTf), [2,5- 2 6 4 2 3 2 6 4 2 {Pt(trpy)C{ C} C H S](OTf), [2,5-{Pt( Bu trpy)C{ C} C H S](OTf) and [1,3,5- 2 4 2 2 3 2 4 2 2 {Pt( Bu trpy)C{ C} C H ](OTf) have been successfully synthesized. The X-ray 3 3 6 3 3t crystal structure of [1,4-{Pt( Bu trpy)C{ C} C H ](OTf) has also been 3 2 6 4 2 determined. The luminescence properties of these complexes have been studied and their lowest-lying excited states in fluid solution and in the glass state were tentatively assigned as admixture of MLCT [dS (Pt)ĺ S *(trpy)] and LLCT [S (C{ C)ĺ S *(trpy)] origin, whereas the low-energy emissions in the solid state were attributed to triplet metal metal-to-ligand charge transfer ( MMLCT) phosphorescence, resulting from significant Pt---Pt interactions in the solid state. Besides, a series of luminescent platinum(II) terpyridyl alkynyl complexes with different counter anions, [Pt(trpy)(C{ C C{ C H)]X (X = OTf, PF, ClO, 6 4 BF, BPh ), [Pt(trpy)(C{ C C H )]X (X = OTf, PF, ClO, BF ) and 4 4 6 5 6 4 4 complexes with various substituents on the alkynyl and terpyridyl ligands, [Pt(trpy)(C{ CC H OCH-4)]OTf, [Pt(4'-CH O trpy)(C{ C C H )]OTf, 6 4 3 3 6 5 [Pt( Bu trpy)(C{ C C{ CH)]OTf, [Pt(trpy)(C{ CC H {CH NMe }-4)](OTf), 3 6 4 2 3 2 [Pt(trpy)(C{ C C{ C CH NMe )](OTf) and [Pt(trpy)(C{ C C{ C CH OH)]OTf 2 3 2 2 have been synthesized and their photophysical properties have been stuided. The X-ray crystal structure of [Pt(trpy)(C{ C C H )]ClO and 6 5 4 [Pt( Bu trpy)(C{ C C{ C H)]OTf have been determined. The solid-state absorption and emission spectra showed low-energy bands, which were assigned as derived from MMLCT origin. Solvent-induced aggregation studies of these complexes in solution showed that the color of the aggregates could be very different for different counter-ions, indicating that counter-ions played an important role in governing the degree of aggregation and the extent of interactions within these aggregates. Addition of various anions to solutions of [Pt(trpy)(C{ C C{ C H)]X (X = OTf, PF ) produced anion-induced color 6changes upon solvent-induced aggregation, showing that these complexes might serve as potential colorimetric anion probes. The effect of temperature on the aggregation properties of the complexes has also been explored. New low-energy absorption and emission bands were found upon a reduction of temperature, attributable to the formation o

Download or read book The Synthesis and Characterization of Novel Platinum II Complexes Containing Salicylaldimine Ligands Derived from Lipophilic Amines written by Caeleigh Ryalls and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis and Characterization of Platinum II Complexes with Diazine Ligands written by Julien Priqueler and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis and characterization of platinum II complexes from quinoline or pyridine functionalized benzothiophene ligands written by Leila Duman and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis and Characterization of Platinum II Comlplexes with Diazine Ligands written by Julien Priqueler and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis and Characterization of Platinum II Complexes with Adamantantanamine Derivatives and Related Ligands written by Monique Doyon and published by . This book was released on 1991 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: "New platinum(II) complexes of the type (Pt(A$ sp prime$)Cl$ sb3 rbrack sp-$, Pt(A)(A$ sp prime$)Cl$ sb2$ and Pt(A)(A$ sp prime$)I$ sb2$, where A = methylamine, ethylamine, cyclobutylamine and cyclopentylamine and A$ sp prime$ = 1-adamantanamine, 2-adamantanamine and 1-methyladamantanamine have been synthesized. The structure of (2-adamH) (Pt(EtNH$ sb2$)Cl$ sb3$) complex has been determined by X-ray diffraction." --