Excited State Properties of α,ω-Diphenylpolyenes: Photophysical and Photochemical Studies of Donor–Acceptor Diarylbutadienes
作者:Anil K. Singh、Ganapati R. Mahalaxmi
DOI:10.1562/0031-8655(2000)071<0387:espodp>2.0.co;2
日期:——
are described the absorption, fluorescence and photoisomerization studies of donor–acceptor diarylbutadienes, namely: p-(N,N-dimethylamino)-p′-cyano-1,4-diphenylbuta-1E,3E-diene (1), p-(N,N-dimethylamino)-p′-nitro-1,4-diphenylbuta-1E,3E-diene (2), p-(N,N-dimethylamino)-m′-nitro-1,4-diphenylbuta-1E,3E-diene (3), p-(N,N-dimethylamino)-o′-nitro-1,4-diphenylbuta-1E,3E-diene (4). Absorption properties are
摘要 α,ω-二苯基多烯作为与涉及能量和感觉光转导的天然光感受器相关的视黄基多烯的模型引起了极大的关注。特别令人感兴趣的是它们的激发态电子结构和光谱特性。然而,就其结构和能量学而言,最低激发态的确切性质尚不清楚。检查供体-受体二苯基多烯的光物理和光化学有助于理解线性多烯的激发态和光过程。本文描述了供体-受体二芳基丁二烯的吸收、荧光和光异构化研究,即:p-(N,N-二甲氨基)-p'-cyano-1,4-diphenylbuta-1E,3E-diene (1), p-(N,N-二甲氨基)-p'-nitro-1,4-diphenylbuta-1E, 3E-二烯 (2), p-(N,N-二甲氨基)-m'-nitro-1,4-diphenylbuta-1E,3E-diene (3), p-(N,N-二甲氨基)-o'- nitro-1,4-diphenylbuta-1E,3E-diene (4)。由于