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Book Study of Luminescent Rhenium I Carbene and Cyclometalated Iridium III Complexes Photophysics Photocatalysis and Anion binding Properties

Download or read book Study of Luminescent Rhenium I Carbene and Cyclometalated Iridium III Complexes Photophysics Photocatalysis and Anion binding Properties written by 吳志安 and published by . This book was released on 2016 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book SYNTHESES PHOTOPHYSICS OF LU

Download or read book SYNTHESES PHOTOPHYSICS OF LU written by Man-Chung Wong and published by Open Dissertation Press. This book was released on 2017-01-27 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Syntheses and Photophysics of Luminescent Mono- and Dinuclear Rhenium Complexes Containing Functional Ligands" by Man-chung, Wong, 黃文忠, 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 AND PHOTOPHYSICS OF LUMINESCENT MONO- AND DINUCLEAR RHENIUM COMPLEXES CONTAINING FUNCTIONAL LIGANDS" Submitted by Wong Man Chung for the degree of Doctor of Philosophy at The University of Hong Kong ABSTRACT With the growing interest in the exploration of inorganic/ organometallic sensing materials, a series of mononuclear rhenium(I) and rhenium(V) and dinuclear rhenium(I) (DIC-18-C-6)Cl], complexes with crown ether pendants of formula [Re(CO) [{Re(CO) Cl}(DDIC)], [Re(CO)(DIC-S)Cl], [Re(CO)(DIC-3S)Cl], [Re(CO) (DIC- 3 2 3 3 3 Se)Cl], [Re(CO) (DPPZC)Cl] and [Re (PPh ) (C≡C-benzo-15-crown-5) ] have been 3 3 2 2 synthesized. The photophysical, electrochemical and cation-binding properties of these systems have been studied. The structure of [Re(CO) (DIC-Se)Cl] has been established by X-ray crystallography. The electronic absorption energies of the rhenium(I) complexes were found to be sensitive to the presence of metal cations. The stability constants of [Re(CO)(DIC-18-C-6)Cl] and [{Re(CO) Cl}(DDIC)] for alkali and 3 3 2 alkaline-earth metal cations have been determined by UV-visible spectrophotometry. The complexes [Re(CO)(DIC-S)Cl], [Re(CO)(DIC-3S)Cl] and [Re(CO) (DIC-Se)Cl] 3 3 3 showed a downfield shift of methylene protons adjacent to the sulphur or selenium atom on the crown ether moiety upon addition of silver ion in deuterated acetonitrile. Their stability constants for silver ion have also been determined by UV-visible and H NMR spectroscopies. Direct evidences for the formation of the inclusion species between the crown ether-containing rhenium(V) complex [Re (PPh ) (C≡C-benzo-15-crown-5) ] and 3 2 2 lithium or sodium ions were obtained from electrospray ionization-mass spectrometry. A series of mononuclear and dinuclear rhenium(I) complexes with thiolate and selenolate ligands, [Re(CO) (N-N)(S-C H -X-p)] and [{Re(CO) (N-N)} (μ-S-C H -X- 3 6 4 3 2 6 4] t p)], have been synthesized (N-N = bpy, Me -bpy, Bu -bpy, phen; X = CH, OCH, 2 2 3 3 C(CH ), Cl, F). Unsymmetrical dinuclear rhenium(I) thiolate complexes have been 3 3 prepared by utilizing the mononuclear complexes as precursors. Their electrochemical properties have also been studied. The photophysical behaviour of the dinuclear complexes has been studied. Attempts to investigate the photophysical behaviour of the mononuclear counterparts were unsuccessful owing to their low photo-stability. The crystal structures of the complexes [Re(CO) (phen)(SC H -OCH -p)], [Re(CO) ( Bu - 3 6 4 3 3 2 bpy)(SePh)], [{Re(CO) (bpy)} (μ-SC H -CH -p)]OTf, [Re(CO) (phen)(μ-SC H -OMe- 3 2 6 4 3 3 6 4 p)Re(CO) (bpy)]OTf and [Re(CO) (Me -bpy)(μ-SC H -Me-p)Re(CO) (NO -phen)]OTf 3 3 2 6 4 3 2 have also been determined. Besides, a series of luminescent rhenium(I) acetylide complexes with diimine ligands, [Re(CO) (N-N)(C≡C-R)] (N-N = bpy, Me -bpy, phen, NO -phen; R = Ph, C H - 3 2 2 6 4 Cl-p, C H -C H -p, C H -C≡CH-p, C H -N=N-C H -OC H, EEME), have been 6 4 8 17 6 4 6 4 6 4 12 25 synthesized and their photophysical and electrochemical properties studied. The X-ray crystal structure of [Re(CO) (bpy)(C≡C-Ph)] has been determined. An unsymmetrical dinuclear complex, [(bpy)(CO) Re-C≡C-C H -C≡C-C≡C-C H -C≡C-Re(CO) ( Bu -bpy)] 3 6 4 6 4 3 2 has been prepared by

Book The Synthesis and Photophysical Studies of Cyclometalated Iridium III Complexes

Download or read book The Synthesis and Photophysical Studies of Cyclometalated Iridium III Complexes written by and published by . This book was released on 2003 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Photophysics of Organometallics

Download or read book Photophysics of Organometallics written by Alistair J. Lees and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Arvind Kumar, Shih-Sheng Sun, and Alistair J. Lees: Photophysics and Photochemistry of Organometallic Rhenium Diimine Complexes; Conor Long: Photophysics of CO Loss from Simple Metal Carbonyl Complexes; Antonín Vlcek Jr: Ultrafast Excited-State Processes in Re(I) Carbonyl-Diimine Complexes: From Excitation to Photochemistry; Kenneth Kam-Wing Lo: Exploitation of Luminescent Organometallic Rhenium(I) and Iridium(III) Complexes in Biological Studies; Maria L. Muro , Aaron A. Rachford , Xianghuai Wang, and Felix N. Castellano: Platinum II Acetylide Photophysics; Andreas F. Rausch, Herbert H. H. Homeier, and Hartmut Yersin: Organometallic Pt(II) and Ir(III) Triplet Emitters for OLED Applications and the Role of Spin-Orbit Coupling: A Study Based on High-Resolution Optical Spectroscopy.

Book Photophysical Electrochemical Properties and Theoretical Study of New Cyclometalated Complexes of Iridium III Containing Benzo h quinoline

Download or read book Photophysical Electrochemical Properties and Theoretical Study of New Cyclometalated Complexes of Iridium III Containing Benzo h quinoline written by 褚偉廷 and published by . This book was released on 2008 with total page 149 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Stereoselective Synthesis of Cyclometalated Iridium III Complexes Characterization and Photophysical Properties

Download or read book Stereoselective Synthesis of Cyclometalated Iridium III Complexes Characterization and Photophysical Properties written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The stereoselective synthesis of a highly luminescent neutral Ir(III) complex comprising two bidentate chiral, cyclometalating phenylpyridine derivatives, and one acetylacetonate as ligands is described. The final complex and some intermediates were characterized by X-ray structural analysis, NMR-, CD-, and CPL-spectroscopy.

Book Phosphorescent Cyclometalated Iridium III Complexes and Corresponding Conducting Metallopolymers

Download or read book Phosphorescent Cyclometalated Iridium III Complexes and Corresponding Conducting Metallopolymers written by Travis Wayne Hesterberg and published by . This book was released on 2012 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conducting metallopolymers have been investigated for a variety of applications due to their ability to take advantage of both the mechanical processability of the polymer material, as well as the optical and electronic properties of the metal. Our project goal is to design, synthesize and characterize novel iridium(III)-containing conducting metallopolymers for use as the active layer in polymer light-emitting diodes. We have utilized thiophene functionalized ligands that can be readily electropolymerized into conducting polymer thin films and can be easily incorporated into a device structure. Iridium(III) was chosen as the metal center due to its promising photophysical properties, as similar complexes have demonstrated high luminescent quantum yields and short phosphorescent lifetimes. The coordination environment around the metal can be altered synthetically to tune the emission wavelength across the visible spectrum. The synthetic control over the polymer backbone, as well as the iridium(III) ligand environment, allowed us to independently vary each component, which has provided a variety of materials. The materials are characterized through 1H and 13C NMR, mass spectrometry, elemental analysis, electrochemistry, X-Ray diffraction and X-Ray Photoelectron Spectroscopy. The photophysical properties of the materials are studied through UV-Visible absorption spectroscopy, UV-Vis-NIR spectroelectrochemistry and steady-state/ time-resolved emission spectroscopy.

Book Synthesis Photophysics Electrochemistry and Protein binding Studies of Luminescent Rhenium I Polypyridine Indole and Biotin Complexes

Download or read book Synthesis Photophysics Electrochemistry and Protein binding Studies of Luminescent Rhenium I Polypyridine Indole and Biotin Complexes written by Ka Shing Sze and published by . This book was released on 2007 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Electronic Structure and Luminescence Properties of Unique Complexes Cyclometalated Iridium iii Chelated by O carboranyl pyridine Ligands1

Download or read book Electronic Structure and Luminescence Properties of Unique Complexes Cyclometalated Iridium iii Chelated by O carboranyl pyridine Ligands1 written by and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Luminescence Properties of Europium Iridium and Rhenium Complexes

Download or read book Luminescence Properties of Europium Iridium and Rhenium Complexes written by Christopher Patrick Shipley and published by . This book was released on 2003 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Rhenium I Tricarbonyl Complexes

Download or read book Rhenium I Tricarbonyl Complexes written by Onduru Stephen Odongo and published by . This book was released on 2005 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Synthesis and Photophysics of Bis cyclometalated Iridium III Complexes for Use in Organic Light Emitting Devices and Singlet Oxygen Sensitization

Download or read book Synthesis and Photophysics of Bis cyclometalated Iridium III Complexes for Use in Organic Light Emitting Devices and Singlet Oxygen Sensitization written by Drew Logan Murphy and published by . This book was released on 2004 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: