Kercher, Michael and Koenig, Burkhard and Zieg, Harald and De Cola, Luisa (2002) Photoinduced energy- and electron-transfer processes within dynamic self-assembled donor-acceptor arrays. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 124 (38). pp. 11541-11551. ISSN 0002-7863
Full text not available from this repository. (Request a copy)Abstract
The synthesis and the photophysical properties of a series of noncovalently assembled donor-acceptor systems, dyads, is reported. The presented approach uses an "innocent" coordination compound, a scandium(III) acetyl acetonate derivative, as core and promotor of the dyad formation. Intercomponent photoinduced energy transfer or electron transfer within the dynamic assembly, which yields to a statistical library of donor-acceptor systems, is reported. The assemblies for energy-transfer processes are constituted by an energy donor, Ru(bpy)(3)(2+)-based component (bpy = 2,2'-bipyridine), and by an energy-acceptor moiety, anthracene-based unit, both substituted with a chelating ligand, acetyl acetone, that via coordination with a scandium ion will ensure the formation of the dyad. If N,N,N'N'-tetramethyl-2,5-diaminobenzyl-substituted acetyl acetonate ligands are used in the place of 9-acyl-anthracene, intramolecular photoinduced electron transfer from the amino derivative (electron donor) to the Ru(bpy)(3)(2+)-unit was detected upon self-assembly, mediated by the scandium complex. The photophysical processes can be studied on the lifetime of the kinetically labile complexes.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | MOLECULAR RECOGNITION; ARTIFICIAL PHOTOSYNTHESIS; BUILDING-BLOCKS; COMPLEXES; SYSTEMS; 2,2'-BIPYRIDINE; RUTHENIUM(II); BIPYRIDINE; LIGAND; UNITS; |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Organische Chemie > Lehrstuhl Prof. Dr. Burkhard König |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 27 Aug 2021 07:38 |
| Last Modified: | 27 Aug 2021 07:38 |
| URI: | https://pred.uni-regensburg.de/id/eprint/39866 |
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