Hedley, G. J. , Ruseckas, A., Harriman, A. and Samuel, I. D.W. (2011) Conformational effects on the dynamics of internal conversion in boron dipyrromethene dyes in solution. Angewandte Chemie (International Edition), 50(29), pp. 6634-6637. (doi: 10.1002/anie.201101219) (PMID:21671319)
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Abstract
Internal conversion between the S2 and S1 excited singlet states is rapid in the target dyes (see picture) but shows a clear sensitivity to rotational flexibility of the meso‐phenyl ring. Steric crowding by methyl groups at the 4,7‐positions leads to a curved S2 potential‐energy surface punctured with nonlocal pinholes coupled to the S1 surface. Removal of these groups flattens the potential‐energy surface, promoting barrierless crossing to the S1 surface.
| Item Type: | Articles |
|---|---|
| Additional Information: | Funding: Engineering and Physical Sciences Research Council EP/E062636/1. |
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Hedley, Dr Gordon |
| Authors: | Hedley, G. J., Ruseckas, A., Harriman, A., and Samuel, I. D.W. |
| College/School: | College of Science and Engineering > School of Chemistry |
| Journal Name: | Angewandte Chemie (International Edition) |
| Publisher: | Wiley |
| ISSN: | 1433-7851 |
| ISSN (Online): | 1521-3773 |
| Published Online: | 10 June 2011 |
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