| | 1 | Author
| L. Ya, E. W. Baranov, Schlag | Requires cookie* | | | Title
| New Mechanism for Facile Charge Transport in Polypeptides  | | | | Abstract
| An electronic hole migration accross a polypeptide chain is discussed with special reference to new ab initio computational results and to the experimental observations of Weinkauf et al. on the charge photoinjection into the polypeptide backbone. New mechanistic details for this efficient charge transport process are proposed. The process is viewed as a vibronically induced hole hopping between local aminoacid sites driven by large amplitude torsional motions of the floppy backbone. | | | |
Reference
| Z. Naturforsch. 54a, 387—396 (1999); received May 7 1999 | | | |
Published
| 1999 | | | |
Keywords
| Protein, Polypeptide, Charge Transfer, Hopping | | | |
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| default:Reihe_A/54/ZNA-1999-54a-0387.pdf | | | | Identifier
| ZNA-1999-54a-0387 | | | | Volume
| 54 | |
| 2 | Author
| Markus Leirer, Günther Knör, Amd Vogler | Requires cookie* | | | Title
| Synthesis and Spectroscopic Properties of 1,2-Diiminetricarbonyl- rhenium(I)chloride Complexes with Aliphatic Diimines (or 1,4-Diaza-l,3-butadienes) as Ligands | | | | Abstract
| Re(l,2-diimine)(CO)3Cl complexes with the aliphatic bidentate ligands diiminosuccino-dinitrile (DISN), benzilbisanile (BEAN), bisacetylbisanile (BABA), and benzildiimine (BE DIM) are reported. The compounds show Re(I) to 7r*(diimine) metal-to-ligand charge transfer (MLCT) absorptions in the visible spectral region. The energy of these MLCT-transitions de creases in the series BABA > BEDIM > BEAN > DISN, depending on the 7r* acceptor properties of the coordinated diimine ligands. The maxima of these CT bands undergo a solvent-dependent shift (negative solvatochromism), which indicates a partial charge redistribution in the excited state. The compounds are not photoluminescent at room temperature and 77 K. | | | |
Reference
| Z. Naturforsch. 54b, 341—344 (1999); received December 11 1998 | | | |
Published
| 1999 | | | |
Keywords
| Charge Transfer, Rhenium Complexes, 1, 4-Diaza-l, 3-butadienes, Solvatochromism | | | |
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| default:Reihe_B/54/ZNB-1999-54b-0341.pdf | | | | Identifier
| ZNB-1999-54b-0341 | | | | Volume
| 54 | |
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