Download or read book Vinylsilanes as Ligands in Platinum II Complexes written by Elliot Michael Haschke and published by . This book was released on 1973 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Vinylsilanes as Ligands in Platinum 0 Complexes written by Joseph Andrew Froelich and published by . This book was released on 1975 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Chemistry of Platinum II Complexes Containing Bidentate Ligands written by Gregg J. Lumetta and published by . This book was released on 1986 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis and Characterization of Platinum II Complexes with Sulfur and Nitrogen Containing Ligands written by Jun Wen and published by . This book was released on 2012 with total page 96 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 Luminescent Mixed Ligand Square Planar Platinum II Complexes Containing Dithiolate Or Dithiocarbamate Ligands written by Joanne McDonald Bevilacqua and published by . This book was released on 1994 with total page 438 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 DESIGN SYNTHESIS SPECTROSCOP written by Charlotte Po and published by Open Dissertation Press. This book was released on 2017-01-26 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Design, Synthesis and Spectroscopic Studies of Amphiphilic Platinum(II) Complexes With Tridentate N-donor Ligands: From Simple Molecules to Supramolecular Assemblies and Nanostructures" by Charlotte, Po, 布珮樂, 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, SYNTHESIS AND SPECTROSCOPIC STUDIES OF AMPHIPHILIC PLATINUM(II) COMPLEXES WITH TRIDENTATE N-DONOR LIGANDS - FROM SIMPLE MOLECULES TO SUPRAMOLECULAR ASSEMBLIES AND NANOSTRUCTURES Submitted by PO Charlotte for the degree of Doctor of Philosophy at The University of Hong Kong in February 2014 Several series of amphiphilic platinum(II) complexes with tridentate N-donor ligands were synthesized and characterized. Their photophysical properties as well as the spectroscopic changes resulting from the supramolecular assemblies of the complexes were studied. Water-soluble platinum(II) bzimpy complexes have been shown to exhibit strong aggregation in water to give highly ordered nanostructures and by structural modification, various morphologies such as spherical and cylindrical micelles, vesicles and bilayer sheets were obtained. The differences in molecular packing and morphology have been found to give rise to an alteration of Pt---Pt interaction and hence a change in MMLCT absorption and MMLCT emission and such changes were utilized as a probe for the morphological transformation. - + Different hydrophilic groups of sulfonate (-SO ), trimethylammonium (-NMe ) and 3 3 triethylene glycol (TEG) were incorporated into the platinum(II) bzimpy complexes to render their water solubility. An interesting aggregation-partial deaggregation-aggregation process has been demonstrated by [Pt{bzimpy(PrSO ) }Cl]K and its alkynyl analogues via a change in the solvent 3 2 composition. A drastic rainbow-like color change from red to yellow to green and blue was observed via the increase in organic solvent content in the aqueous solution of [Pt{bzimpy(PrSO )}Cl]K. The color change and luminescence change were 3 2 monitored by UV-vis absorption and emission studies, and a change in the MMLCT absorption and emission due to the alteration in Pt---Pt interactions during the assembly and disassembly process was observed. Through microscopy studies, the spectroscopic changes were correlated to a morphological transformation from vesicle to rod. The degree of aggregation of the complexes with different hydrophilic groups was compared through their dimerization constant and the inferences of electrostatic interactions on assemblies were investigated through the modulation of salt content of the solution and via co-assembly studies of the highly charged complexes, [Pt{bzimpy(PrSO ) (OPrSO )}Cl]K and [Pt{bzimpy(C H -NMe ) }Cl]Cl . 3 2 3 2 10 20 3 2 3 Through the incorporation of hydrophilic alkynyl ligands, bolaamphiphilic complexes were also synthesized and their aggregation behavior in water was studied. The effect in tuning the hydrophobicity of the complexes was studied by varying the alkyl chain length of the sulfonate-pendant platinum(II) bzimpy (Pt{bzimpy(PrSO ) }) 3 2 complexes and an unexpected shift in the UV-vis absorption and emission was observed due to the formation of aggregates. The thermo-responsive behavior of a TEG-pendant alkynylplatinum(II) bzimpy complex, [Pt{bzimpy(TEG) }{C≡CC H - 2 6 3 (OC H )-3,5}]Cl, in aqueous solution was investigated and on increasing 12 25 2 temperature, a morphological transformation from bilayer sheet to spherical micelles was observed and a large hysteresis

Download or read book Synthesis of Pt II Pt IV Complexes of Alpha aap Acid Ligands written by Georgina Giannikopoulos and published by . This book was released on 2002 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Platinum II Complexes with Crown Thioethers and Phosphine Ligands written by Ivan Poullaos and published by . This book was released on 1999 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Platinum Ligand Pi Bonding Interactions written by Yuen-Chi Law and published by . This book was released on 2017-01-27 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Platinum-ligand PI Bonding Interactions: the Ligand-to-ligand Charge Transfer Transitions and Supramolecular Chemistry of Platinum(II) Acetylide and Thiolate Complexes" by Yuen-chi, Law, 羅婉芝, 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 PLATINUM-LIGAND PI BONDING INTERACTIONS: THE LIGAND-TO-LIGAND CHARGE TRANSFER TRANSITIONS AND SUPRAMOLECULAR CHEMISTRY OF PLATINUM(II) ACETYLIDE AND THIOLATE COMPLEXES Submitted by Law Yuen Chi for the degree of Doctor of Philosophy at The University of Hong Kong in November 2006 Platinum(II) complexes have attracted considerable interest for decades, namely due to their luminescent properties and molecular aggregations. A wide emission spectral range and the enhancement of emission properties, such as quantum yields and emission lifetimes, can be achieved by choosing suitable substituents on ligands of platinum(II) complexes. The aggregation and deaggregation alter the photophysical and/or physical properties of platinum(II) chemistry. The syntheses, characterization, spectroscopic, and photophysical properties of platinum(II) acetylide and thiolate complexes are described, and four systems examined in detail. Tuning of the spectroscopic and photophysical properties of terpyridyl platinum(II) complexes bearing alkynyl auxiliaries, namely [Pt(N DEGREESN DEGREESN)C≡C(C H C≡C) R] [(N DEGREESN DEGREESN) = 6 4 n-1 4,4′,4′′-trichloro-2,2′ 6′,2′′-terpyridine or 4,4′,4′′-tri-tert-butyl-2,2′ 6′,2″-terpyridine ( Bu tpy); n = 1-3; R = aryl or alkyl] by varying the acetylide chain length and substituents on the terpyridine and acetylide ligands, is presented. The effects of acetylide chain length n of X = H and N(CH ) of 3 2 t + [Pt( Bu tpy)C≡C(C H C≡C) C H -X-4] [n = 1-3] on the absorption energies are 3 6 4 n-1 6 4 varied due to different electron delocalization in the coordinated arylacetylide. t + n Resonance Raman spectra of [Pt( Bu tpy)(C≡CR)] (R = Bu, Ph, or C H -OCH -4) 3 6 4 3 revealed that the low-energy absorption bands are derived from two different transition states. The triplet emissive-states of the alkylacetylide complexes are assigned to an admixture of [d (Pt) → π*(tpy)] metal-to-ligand charge transfer 3 3 3 ( MLCT) and [π(C≡C) → π*(tpy)] ligand-to-ligand charge transfer ( LLCT) 3 transitions, whereas those of the arylacetylide complexes are ascribed to [π(C≡CAr) → π*(tpy)] ( LLCT) transition. A phosphorescent binuclear terpyridyl platinum(II) complex with the bridging ligand 2,5-bis-(4-ethynylphenyl)-[1,3,4]oxadiazole gelates in various solvents. Based on powder X-ray diffraction, small angle X-ray scattering, UV-vis absorption, emission, variable temperature H NMR measurements, and the X-ray crystal structure of monomeric terpyridyl platinum(II) complex of 2,5-diaryl-[1,3,4]oxadiazole, the driving force for the gelation is proposed to be intermolecular π-π interactions between [( Bu tpy)PtC≡C] moieties in staggered fashion, even though the role of electrostatic, dipole-dipole, and van der Waals interactions could not be excluded. Oligomeric complexes of [Pt(tpy)] moieties tethered by C≡C were found to have interesting thermal behavior as observed by variable temperature H NMR spectroscopy. This thermal behavior is attributed to molecular interactions, such as intermolecular Pt---Pt and π-π interactions. The extent of molecular interactions could be controlled by varying the substituent on acetylide ligand. The absorp

Download or read book Platinum II Sila alkyl Complexes with N and P donor Ligands written by Robert David Kelly and published by . This book was released on 1989 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 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." --

Download or read book Luminescent Platinum ii Complexes Containing Dianionic Tetradentate Ligands Having Mixed Oxygen Nitrogen and Carbon Donor Atoms and Platinum ii Containing Phosphorescent Polymers written by Wai-Yip Tong and published by Open Dissertation Press. This book was released on 2017-01-26 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Luminescent Platinum(II) Complexes Containing Dianionic Tetradentate Ligands Having Mixed Oxygen, Nitrogen and Carbon Donor Atoms and Platinum(II)-containing Phosphorescent Polymers: Synthesis, Photophysical Properties and Material Applications" by Wai-yip, Tong, 唐煒燁, 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 LUMINESCENT PLATINUM(II) COMPLEXES CONTAINING DIANIONIC TETRADENTATE LIGANDS HAVING MIXED OXYGEN, NITROGEN AND CARBON DONOR ATOMS AND PLATINUM(II)-CONTAINING PHOSPHORESCENT POLYMERS: SYNTHESIS, PHOTOPHYSICAL PROPERTIES AND MATERIAL APPLICATIONS Submitted by TONG WAI YIP for the degree of Doctor of Philosophy at The University of Hong Kong in May 2014 Square planar platinum(II) complexes exhibit rich photophysical properties which are tunable through the structural variation of ligands and can be harnessed for applications in materials science. In this thesis, the great variety of spectroscopic properties of various square planar cyclometalated platinum(II) complexes supported by tetradentate (O DEGREESN DEGREESN DEGREESC and O DEGREESN DEGREESC DEGREESN) and tridentate (C DEGREESN DEGREESN) ligands containing dipyridyl moieties will be highlighted, along with their synthesis, characterization and potential application in organic light emitting diodes (OLEDs). Ind Platinum(II) complexes supported by tetradentate O DEGREESN DEGREESN DEGREESC or O DEGREESN DEGREESN DEGREESC types of ligands (O DEGREESN DEGREESN DEGREESC = 2-(4-(3,5-di-tert-butylphenyl)-6'-phenyl-2,2'- Ind bipyridin-6-yl)phenolate; O DEGREESN DEGREESN DEGREESC = 5,5-dialkyl-2-(6-phenylpyridin-2-yl) indeno[1,2-b]pyridin-9-olate) are emissive in solution at room temperature, with emission maxima tunable from 582 nm to 640 nm and quantum yields up to 0.28. Mechanochromism and the associated luminescence change in [Pt(dihexyl- Ind O DEGREESN DEGREESN DEGREESC)] (Complex 3.6) were found associated with the two different crystal packings revealed by powder X-ray diffraction (PXRD) studies. Fast vapochromic response of [Pt(3-O DEGREESN DEGREESN-2,6-difluoropyridine)] (Complex 3.3) on chloroform or dichloromethane vapours was found to be associated with structural changes in the solid state through PXRD studies. Robust and strongly emissive platinum(II) complexes supported by tetradentate O DEGREESN DEGREESC DEGREESN ligands featuring fused six-five-six membered metallacyclic ring (O DEGREESN DEGREESC DEGREESN = 2-(4-(3,5-di-tert-butylphenyl)-6-(9-(pyridin-2-yl) carbazol-2-yl)pyridin-2-yl)phenol) have been prepared. These platinum(II) complexes are among the most efficient yellow phosphors, with emission maxima ranging from 526 nm to 553 nm and luminescence quantum yields as high as -1 0.47-0.86. A yellow OLED with power efficiency (η ) up to 52 lm W is power demonstrated. In combination with the typical blue emitting iridium(III) 2' bis(4,6-difluorophenyl-pyridinato-N, C ) picolinate (FIrpic), white organic -1 light-emitting diodes (WOLEDs) displayed η up to 61 lm W and reduced power -2 efficiency roll-off at 1000 cd m . Random copolymers with photo-inert backbone poly[(N-vinylcarbazole)-co- ((R-C DEGREESN DEGREESN)Pt)] and poly[(2-(4-tert-butylphenyl)-5-(4-vinylphenyl)-1,3,4- oxadiazole)-co-((R-C DEGREESN DEGREESN)Pt)] (R-C DEGREESN DEGREESN = 3-(6-phenyl-4-(4-vinylphenyl) pyridine-2-yl)-isoquinoline or 3-(4-(4-(dec-9-enyloxy)phenyl)-6-phenylpyridin- 2-yl)isoquinoline) have been synthesized and characterized. Energy transfer between the charge transporting units and emissive (R-C DEGREESN DEGREESN)Pt units was revealed through ICP-MS inve

Download or read book Synthesis Structure and Spectroscopy of Platinum II Diimine Complexes with Potentially Facially coordinating Ligands written by and published by . This book was released on 2005 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Chemistry of Platinum and Palladium with Particular Reference to Complexes of the Elements written by F. R. Hartley and published by . This book was released on 1973 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt: