Photochromism of diarylethene derivatives in rigid polymer matrix: Structural dependence, matrix effect, and kinetics

Doo Hyung Kwon; Hee Won Shin; Eunkyoung Kim; Doo Wan Boo; Yong Rok Kim

doi:10.1016/S0009-2614(00)00893-9

Photochromism of diarylethene derivatives in rigid polymer matrix: Structural dependence, matrix effect, and kinetics

Doo Hyung Kwon, Hee Won Shin, Eunkyoung Kim, Doo Wan Boo, Yong Rok Kim

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

Photochromic reactions of three diarylethene derivatives embedded in three types of polymer matrices were studied using a variety of spectroscopic techniques and quantum ab initio computations. It was found that the photochromic efficiencies of diarylethene molecules depend on the structural and electronic characteristics of Franck-Condon region in the excited states, and also depend strongly on the sizes of free inner spaces of the matrices. The steady-state and time-resolved fluorescence studies revealed the detailed kinetics of the planar and twisted conformers in the excited states. The observed fluorescence lifetimes of the planar and twisted conformers were ~2.6 ns and 8~30 ns.

Original language	English
Pages (from-to)	234-243
Number of pages	10
Journal	Chemical Physics Letters
Volume	328
Issue number	1-2
DOIs	https://doi.org/10.1016/S0009-2614(00)00893-9
Publication status	Published - 2000 Sept 22

Bibliographical note

Funding Information:
This work was financially supported by Advanced Photonics Technology Project and CRM-KOSEF grant (1998G0102), Republic of Korea. We thank Sung Kwang Lee for assisting ab initio computation.

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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Cite this

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abstract = "Photochromic reactions of three diarylethene derivatives embedded in three types of polymer matrices were studied using a variety of spectroscopic techniques and quantum ab initio computations. It was found that the photochromic efficiencies of diarylethene molecules depend on the structural and electronic characteristics of Franck-Condon region in the excited states, and also depend strongly on the sizes of free inner spaces of the matrices. The steady-state and time-resolved fluorescence studies revealed the detailed kinetics of the planar and twisted conformers in the excited states. The observed fluorescence lifetimes of the planar and twisted conformers were ~2.6 ns and 8~30 ns.",

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AU - Kwon, Doo Hyung

AU - Shin, Hee Won

AU - Kim, Eunkyoung

AU - Boo, Doo Wan

AU - Kim, Yong Rok

N1 - Funding Information: This work was financially supported by Advanced Photonics Technology Project and CRM-KOSEF grant (1998G0102), Republic of Korea. We thank Sung Kwang Lee for assisting ab initio computation.

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N2 - Photochromic reactions of three diarylethene derivatives embedded in three types of polymer matrices were studied using a variety of spectroscopic techniques and quantum ab initio computations. It was found that the photochromic efficiencies of diarylethene molecules depend on the structural and electronic characteristics of Franck-Condon region in the excited states, and also depend strongly on the sizes of free inner spaces of the matrices. The steady-state and time-resolved fluorescence studies revealed the detailed kinetics of the planar and twisted conformers in the excited states. The observed fluorescence lifetimes of the planar and twisted conformers were ~2.6 ns and 8~30 ns.

AB - Photochromic reactions of three diarylethene derivatives embedded in three types of polymer matrices were studied using a variety of spectroscopic techniques and quantum ab initio computations. It was found that the photochromic efficiencies of diarylethene molecules depend on the structural and electronic characteristics of Franck-Condon region in the excited states, and also depend strongly on the sizes of free inner spaces of the matrices. The steady-state and time-resolved fluorescence studies revealed the detailed kinetics of the planar and twisted conformers in the excited states. The observed fluorescence lifetimes of the planar and twisted conformers were ~2.6 ns and 8~30 ns.

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Photochromism of diarylethene derivatives in rigid polymer matrix: Structural dependence, matrix effect, and kinetics

Abstract

Bibliographical note

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