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Study Of Intermediates From Transition Metal Excited State Electron Transfer Reactions Progress Report August 1 1989 December 31 1991
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Book Synopsis Study of Intermediates from Transition Metal Excited-state Electron-transfer Reactions. Progress Report, August 1, 1989--December 31, 1991 by :
Download or read book Study of Intermediates from Transition Metal Excited-state Electron-transfer Reactions. Progress Report, August 1, 1989--December 31, 1991 written by and published by . This book was released on 1991 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: During this period, conventional and fast-kinetics techniques of photochemistry, photophysics, radiation chemistry, and electrochemistry were used for the characterization of the intermediates that are involved in transition metal excited-state electron-transfer reactions. The intermediates of interest were the excited states of Ru(II) and Cr(III) photosensitizers, their reduced forms, and the species formed in the reactions of redox quenchers and electron-transfer agents. Of particular concern has been the back electron-transfer reaction between the geminate pair formed in the redox quenching of the photosensitizers, and the dependence of its rate on solution medium and temperature in competition with transformation and cage escape processes.
Book Synopsis Study of Intermediates from Transition Metal Excited-state Electron-transfer Reactions. [Annual] Progress Report, August 1, 1989--July 31, 1992 by :
Download or read book Study of Intermediates from Transition Metal Excited-state Electron-transfer Reactions. [Annual] Progress Report, August 1, 1989--July 31, 1992 written by and published by . This book was released on 1992 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conventional and fast-kinetics techniques of photochemistry, photophysics, radiation chemistry, and electrochemistry were used to study the intermediates involved in transition metal excited-state electron-transfer reactions. These intermediates were excited state of Ru(II) and Cr(III) photosensitizers, their reduced forms, and species formed in reactions of redox quenchers and electron-transfer agents. Of particular concern was the back electron-transfer reaction between the geminate pair formed in the redox quenching of the photosensitizers, and the dependence of its rate on solution medium and temperature in competition with transformation and cage escape processes. (DLC).
Download or read book Energy Research Abstracts written by and published by . This book was released on 1993-02 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Study of Intermediates from Transition Metal Excited-state Electron- Transfer Reactions. Progress Report, January 1, 1992--March 31, 1993 by :
Download or read book Study of Intermediates from Transition Metal Excited-state Electron- Transfer Reactions. Progress Report, January 1, 1992--March 31, 1993 written by and published by . This book was released on 1993 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Progress on 6 projects is reported: excited state absorption spectrum of Ru(bpy)3{sup 2+}, solvent cage model for electron transfer quenching, reductive quenching of {sup *}Cr(III) complexes, solution medium effects in oxidative quenching of {sup *}Ru(II) complexes, photosensitized oxidation of phenol in aqueous solution, and quenching of Ru(II) complexes by oxygen.
Book Synopsis Study of Intermediates from Transition Metal Excited-state Electron-transfer Reactions. Final Report, August 4, 1986--August 31, 1997 by :
Download or read book Study of Intermediates from Transition Metal Excited-state Electron-transfer Reactions. Final Report, August 4, 1986--August 31, 1997 written by and published by . This book was released on 1997 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: The techniques of continuous photolysis and pulsed laser flash photolysis, continuous and pulse radiolysis, fast-scan cyclic voltammetry, and time-resolved fluorimetry have been used to examine intramolecular electron transfer within the solvent quenching cage, photodynamics of quenching of the excited states of transition-metal photosensitizers, the properties of excites states and one-electron reduced forms, ground- and excited-state interactions with solutes, and photoinduced oxidations of organic solutes in aqueous solution. The following specific areas were examined: (1) the parameters that govern the yields of redox products from excited-state electron-transfer quenching reactions; (2) the mediation of the properties of excited states and one-electron reduced forms by the ligands and the solution medium; (3) the effect of the interactions between the ground state of the complex and the solution components on the behavior of the excited state; (4) the yields of singlet oxygen from excited-state energy-transfer quenching by O2; and (5) the oxidations of solutes by singlet oxygen, excited-state electron-transfer quenching, and free radicals. This report contains the abstracts of 50 publications describing the studies.
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1994 with total page 1190 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
Book Synopsis Study of Intermediates from Transition Metal Excited-state Electron- Transfer Reactions by :
Download or read book Study of Intermediates from Transition Metal Excited-state Electron- Transfer Reactions written by and published by . This book was released on 1993 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: Progress on 6 projects is reported: excited state absorption spectrum of Ru(bpy)[sub 3][sup 2+], solvent cage model for electron transfer quenching, reductive quenching of [sup *]Cr(III) complexes, solution medium effects in oxidative quenching of [sup *]Ru(II) complexes, photosensitized oxidation of phenol in aqueous solution, and quenching of Ru(II) complexes by oxygen.
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1993 with total page 1768 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1993 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Excited State Processes in Transition Metal Complexes by :
Download or read book Excited State Processes in Transition Metal Complexes written by and published by . This book was released on 1992 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: In our research there were two major themes. The first was the continued development of excited states as sensitizers. In one sequence of experiments the synthetic aspects of this area were developed in further detail both by extending the chemistry of the polypyridyl-accepting ligands associated with the excited state and by developing a new procedure for the preparation of unsymmetrical tris-chelate complexes. The second important aspect of this work was the continued investigation of the molecular and electronic structure characteristics of this class of excited states and how those factors determine such properties as photostability and excited state decay. This effort was extended to complexes of Re(I) and an examination of their excited state characteristics, the role of hydride ligand in determining the properties of excited states, the calculation of relative nonradiative decay rate constants for a series of complexes of Ru(II), the participation of higher lying excited states in decay in complexes of Ru(II) and Os(II), and the application of the transient infrared technique to the elucidation of a photochemical intermediate following laser flash excitation. The second area of study involved excited states in soluble polymers to investigate photoinduced electron and energy transfer in multi-component assemblies. This work was based on chemically derivatized polystyrene polymers which contain combinations of chromophores and electron or energy transfer quenchers.
Book Synopsis Faculties, Publications, and Doctoral Theses in Chemistry and Chemical Engineering at United States Universities by : American Chemical Society. Committee on Professional Training
Download or read book Faculties, Publications, and Doctoral Theses in Chemistry and Chemical Engineering at United States Universities written by American Chemical Society. Committee on Professional Training and published by . This book was released on 1991 with total page 1646 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Substitution and Excited State Electron Transfer Reactions of Transition Metal Complexes in Organized Media by : Russell Hunter Schmehl
Download or read book Substitution and Excited State Electron Transfer Reactions of Transition Metal Complexes in Organized Media written by Russell Hunter Schmehl and published by . This book was released on 1980 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Excited-state Electron-transfer Reactions of Transition Metal Complexes by : David Gordon Taylor
Download or read book Excited-state Electron-transfer Reactions of Transition Metal Complexes written by David Gordon Taylor and published by . This book was released on 1979 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Reversible excited-state electron-transfer reactions of transition metal complexes by : B. A. De Graff
Download or read book Reversible excited-state electron-transfer reactions of transition metal complexes written by B. A. De Graff and published by . This book was released on 1979 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physics Briefs written by and published by . This book was released on 1993 with total page 1116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Backpacker written by and published by . This book was released on 2007-09 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: Backpacker brings the outdoors straight to the reader's doorstep, inspiring and enabling them to go more places and enjoy nature more often. The authority on active adventure, Backpacker is the world's first GPS-enabled magazine, and the only magazine whose editors personally test the hiking trails, camping gear, and survival tips they publish. Backpacker's Editors' Choice Awards, an industry honor recognizing design, feature and product innovation, has become the gold standard against which all other outdoor-industry awards are measured.
Book Synopsis Zinc Catalysis by : Stephan Enthaler
Download or read book Zinc Catalysis written by Stephan Enthaler and published by John Wiley & Sons. This book was released on 2015-04-27 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: Filling the gap in the market for comprehensive coverage of this hot topic, this timely book covers a wide range of organic transformations, e. g. reductions of unsaturated compounds, oxidation reactions, Friedel-Crafts reactions, hydroamination reactions, depolymerizations, transformations of carbon dioxide, oxidative coupling reactions, as well as C-C, C-N, and C-O bond formation reactions. A chapter on the application of zinc catalysts in total synthesis is also included. With its aim of stimulating further research and discussion in the field, this is a valuable reference for professionals in academia and industry wishing to learn about the latest developments.
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