標題: Photochemical Reaction of p-hydroxycinnamic-thiophenyl Ester in the Microcrystalline State
作者: Usman, Anwar
Asahi, Tsuyoshi
Sugiyama, Teruki
Masuhara, Hiroshi
Tohnai, Norimitsu
Miyata, Mikiji
應用化學系
應用化學系分子科學碩博班
Department of Applied Chemistry
Institute of Molecular science
公開日期: 18-Nov-2010
摘要: We have studied the photochromic reaction of p-hydroxycinnamic-thiophenyl ester in the microcrystalline state We attributed the fluorescence spectral evolution of the microcrystal under UV irradiation to the photoinduced trans-to-cis isomerization The photocyclic behavior of the chromophore was demonstrated by cis-to-trans back reaction under a subsequent visible light irradiation In addition the [2 2] topochemical photocyclodimer was observed as another photoproduct It is considered that the cooperative photoisomerization is initiated at the local lattice distortion and free spaces around the [2 + 2] cyclodimer near the crystal sui lace and the photoisomerization induces larger lattice deformation and further photoisomerization in the interior of the crystal
URI: http://dx.doi.org/10.1021/jp909850r
http://hdl.handle.net/11536/150147
ISSN: 1520-6106
DOI: 10.1021/jp909850r
期刊: JOURNAL OF PHYSICAL CHEMISTRY B
Volume: 114
起始頁: 14233
結束頁: 14240
Appears in Collections:Articles