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- W2037359610 endingPage "3790" @default.
- W2037359610 startingPage "3778" @default.
- W2037359610 abstract "Abstract Phototriggered intramolecular electron transfer across variable‐length oligo‐ p ‐phenylene and oligo‐ p ‐xylene bridges was investigated in seven molecules. For both types of bridges, charge transfer rates decrease exponentially with increasing number of spacer units. The distance decay parameter is 0.21 Å –1 for the phenylenes and 0.77 Å –1 for the xylenes. A simple analysis based on superexchange theory indicates that this difference is due to unequal electronic coupling between adjacent bridging units. On the basis of the experimental data, phenyl‐phenyl coupling is found to be roughly 7 times stronger than xylyl‐xylyl coupling. This difference in electronic coupling strengths can be explained satisfactorily on the sole basis of conformational effects. It is consistent with equilibrium torsion angles of 35–40° between two phenyls and 65–70° between two xylyls.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)" @default.
- W2037359610 created "2016-06-24" @default.
- W2037359610 creator A5000683714 @default.
- W2037359610 creator A5034561520 @default.
- W2037359610 date "2009-08-19" @default.
- W2037359610 modified "2023-09-23" @default.
- W2037359610 title "Conformational Effects on Long‐Range Electron Transfer: Comparison of Oligo‐ <i>p</i> ‐phenylene and Oligo‐ <i>p</i> ‐xylene Bridges" @default.
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- W2037359610 doi "https://doi.org/10.1002/ejic.200900396" @default.
- W2037359610 hasPublicationYear "2009" @default.