title: The effect of a "push-pull" structure on the turn-on fluorescence of photochromic thio-ketone type diarylethenes.
abstract: a series of diarylethene compounds with a thiophene bridging unit have been synthesized to investigate the relationship between molecular structure and photochromic properties. In particular, the fluorescence properties related to compound 1 were investigated. The results showed that a six-membered ring carrying an electron-donating sulfur atom and an electron-withdrawing carbonyl group is necessary to form a "push-pull" system for the fluorescence of 1.
authors.affiliation: Department of Applied Chemistry, Kyung Hee University, Yongin City 446-701, Korea. khahn@khu.ac.kr.
authors.forename: Shichong
authors.initials: S
authors.lastname: Pang
authors.forename: Daeun
authors.initials: D
authors.lastname: Jang
authors.forename: Woo Sun
authors.initials: WS
authors.lastname: Lee
authors.forename: Hyeok-Mo
authors.initials: HM
authors.lastname: Kang
authors.forename: Seung-Ju
authors.initials: SJ
authors.lastname: Hong
authors.forename: Sung Kwan
authors.initials: SK
authors.lastname: Hwang
authors.forename: Kwang-Hyun
authors.initials: KH
authors.lastname: Ahn