Femtosecond dynamics of C-O Bond cleavage of a spirooxazine photochromic reaction

N. Tamai*, Hiroshi Masuhara

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

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 languageEnglish
Title of host publicationUltrafast Phenomena VIII
PublisherPubl by Springer-Verlag GmbH & Company KG
Pages641-643
Number of pages3
Edition55
ISBN (Print)3540564756
StatePublished - 1 Jan 1993
EventProceedings of the 8th International Conference on Ultrafast Phenomena - Antibes Juan-Les-Pins, France
Duration: 8 Jun 199212 Jun 1992

Conference

ConferenceProceedings of the 8th International Conference on Ultrafast Phenomena
CityAntibes Juan-Les-Pins, France
Period8/06/9212/06/92

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