作者:Masashi Ikegami、Masato Nagao、Hiroyuki Katayama、Fumiyuki Ozawa、Tatsuo Arai
DOI:10.1246/bcsj.80.1833
日期:2007.9.15
Photoisomerization mechanism of para-substituted oligo(phenylenevinylene)s (OPVs) was dependent on the number of olefin units. While mono-olefin OPV1 underwent two-way photoisomerization, other OPVs (OPV2, OPV3, and OPV4) underwent photochemical one-way Z-to-E isomerization. As the number of olefin units increased, contribution of the triplet excited state to the Z-to-E isomerization becomes larger.
对位取代低聚苯乙撑 (OPV) 的光异构化机制取决于烯烃单元的数量。单烯烃 OPV1 经历双向光异构化,而其他 OPV(OPV2、OPV3 和 OPV4)则经历光化学单向 Z 至 E 异构化。随着烯烃单元数量的增加,三重激发态对Z-E异构化的贡献变得更大。