Erdmann, E. and Villinger, A. and Koenig, B. and Seidel, W. W. (2018) 1,10-Phenanthroline-dithiine iridium and ruthenium complexes: synthesis, characterization and photocatalytic dihydrogen evolution. PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES, 17 (8). pp. 1056-1067. ISSN 1474-905X, 1474-9092
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We report the synthesis and the spectroscopic and electrochemical properties of six mononuclear iridium(iii) and ruthenium(ii) complexes bearing S,S-extended phenanthroline ligands. Starting from 5,6-dibromide-1,10-phenanthroline, the dithiine derivatives N,N-1,10-phenanthrolinedithiino[2,3-b]quinoxaline and N,N-1,10-phenanthrolinedithiino[2,3-b]benzene were prepared by primary N,N-complexation of the dibromo derivative and subsequent nucleophilic substitution at the complex. The photoluminescence of the phenanthroline-dithiine containing complexes shows distinctively increased lifetimes for all Ir(iii) and Ru(ii) complexes. The activity of the series of Ir(iii) and Ru(ii) complexes as photosensitizers in visible-light photocatalytic water reduction is demonstrated by dihydrogen evolution with a [Fe-3(CO)(12)] catalyst and triethylamine as a sacrificial donor.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | TRANSITION-METAL-COMPLEXES; TURN-ON TIMES; WATER REDUCTION; PHOTOREDOX CATALYSIS; HYDROGEN GENERATION; ARTIFICIAL PHOTOSYNTHESIS; COPPER PHOTOSENSITIZERS; EXCITED-STATE; LIGHT; PHOTOPHYSICS; |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Organische Chemie Chemistry and Pharmacy > Institut für Organische Chemie > Lehrstuhl Prof. Dr. Burkhard König |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 12 Feb 2020 10:12 |
| Last Modified: | 12 Feb 2020 10:12 |
| URI: | https://pred.uni-regensburg.de/id/eprint/14111 |
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