Energy conversion based on molecular excited states: Redox splitting in soluble polymers. Final report

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A general method was developed for preparing complexes of Ru(II) with three different bidentate ligands; it is being extended to monodentate ligands for more synthetic versatility. This method was used to prepare a series of complexes with pre-designed absorption properties, with the goal of ``black absorbers`` for use as antenna chromophores in a light-to-chemical energy conversion array. The energy gap law for nonradiative decay was studied for preparing near-IR luminophores with long excited state lifetimes. The problem of destructive dd excited states in Ru(II) polypyridyl complexes was focused on, with success in preparing an extremely photo-inert complex with monodentate pyridine ... continued below

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10 p.

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Meyer, T. J. December 31, 1995.

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Description

A general method was developed for preparing complexes of Ru(II) with three different bidentate ligands; it is being extended to monodentate ligands for more synthetic versatility. This method was used to prepare a series of complexes with pre-designed absorption properties, with the goal of ``black absorbers`` for use as antenna chromophores in a light-to-chemical energy conversion array. The energy gap law for nonradiative decay was studied for preparing near-IR luminophores with long excited state lifetimes. The problem of destructive dd excited states in Ru(II) polypyridyl complexes was focused on, with success in preparing an extremely photo-inert complex with monodentate pyridine ligands. Time-resolved resonance Raman and infrared spectroscopy were used to study subtle excited state properties of complexes of Ru(II), Os(II), and Re(I). Success was achieved in controlled immobilization of d{sup 6} chromophores and quenchers on styrenic polymers. Having perfected our synthetic technique, we have begun to optimize the ground and excited state properties such as chromophore density, dipole orientation, and lifetime.

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10 p.

Notes

OSTI as DE96012365

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  • Other Information: PBD: [1995]

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  • Other: DE96012365
  • Report No.: DOE/ER/13633--T1
  • Grant Number: FG05-86ER13633
  • DOI: 10.2172/253369 | External Link
  • Office of Scientific & Technical Information Report Number: 253369
  • Archival Resource Key: ark:/67531/metadc672894

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  • December 31, 1995

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  • June 29, 2015, 9:42 p.m.

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  • Jan. 7, 2018, 12:06 a.m.

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Meyer, T. J. Energy conversion based on molecular excited states: Redox splitting in soluble polymers. Final report, report, December 31, 1995; Chapel Hill, North Carolina. (digital.library.unt.edu/ark:/67531/metadc672894/: accessed September 24, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.