Abstract
The dynamics of C-O bond cleavage followed by structural change to merocyanine in the photochromic reaction of a spirooxazine derivative was studied by femtosecond transient absorption spectroscopy. The very broad spectra following the Sn-S1 absorption spectrum of spirooxazine were observed within 2 ps after excitation, and assigned to the absorption from the transition state. The rate constants of C-O bond cleavage and the relaxation from the transition state to a metastable merocyanine were estimated to be approximately (700 fs)-1 and (470 fs)-1, respectively.
| Original language | English |
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| Title of host publication | Ultrafast Phenomena VIII |
| Publisher | Publ by Springer-Verlag GmbH & Company KG |
| Pages | 641-643 |
| Number of pages | 3 |
| Edition | 55 |
| ISBN (Print) | 3540564756 |
| State | Published - 1 Jan 1993 |
| Event | Proceedings of the 8th International Conference on Ultrafast Phenomena - Antibes Juan-Les-Pins, France Duration: 8 Jun 1992 → 12 Jun 1992 |
Conference
| Conference | Proceedings of the 8th International Conference on Ultrafast Phenomena |
|---|---|
| City | Antibes Juan-Les-Pins, France |
| Period | 8/06/92 → 12/06/92 |
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Cite this
Tamai, N., & Masuhara, H. (1993). Femtosecond dynamics of C-O Bond cleavage of a spirooxazine photochromic reaction. In Ultrafast Phenomena VIII (55 ed., pp. 641-643). Publ by Springer-Verlag GmbH & Company KG.