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

N. Tamai; Hiroshi Masuhara

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

N. Tamai^*, Hiroshi Masuhara

^*Corresponding author for this work

Department of Applied Chemistry

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-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 S_n-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
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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title = "Femtosecond dynamics of C-O Bond cleavage of a spirooxazine photochromic reaction",

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.",

author = "N. Tamai and Hiroshi Masuhara",

year = "1993",

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edition = "55",

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T1 - Femtosecond dynamics of C-O Bond cleavage of a spirooxazine photochromic reaction

AU - Tamai, N.

AU - Masuhara, Hiroshi

PY - 1993/1/1

Y1 - 1993/1/1

N2 - 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.

AB - 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.

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M3 - Chapter

AN - SCOPUS:0027226409

SN - 3540564756

SP - 641

EP - 643

BT - Ultrafast Phenomena VIII

PB - Publ by Springer-Verlag GmbH & Company KG

Y2 - 8 June 1992 through 12 June 1992

ER -