摘要
菁是一类很重要的离子型染料和感光材料,也有极少数可用作激光染料,绝大部价菁染料为直链分子。我们最近合成了一系列带有五员桥环的菁,并研究了这些桥环菁化合物的质子化平衡和荧光性质。
The visible absorption maxima (λ_(max)) of the title compounds 1 and 2 in 27 or-ganic solvents were measured. Both 1 and 2 show the negative solvatochromism and remar-kable sensitivity on the polarity of solvent. A fairly good correlation between λ(max) and thewell-known solvent polarity scale Z and E_T(30) values was established. The electron trans-fer energy E_T(1) and E_T(2), calculated from the λ(max) value in different solvents, showsgood parallel relationship with Z and E_T(30). Thus E_T(1) or E_T(2) can be used as a newsolvent polarity scale.
出处
《有机化学》
SCIE
CAS
CSCD
北大核心
1990年第1期54-58,共5页
Chinese Journal of Organic Chemistry
基金
国家自然科学基金会青年科学基金
关键词
桥环化合物
菁化物
溶剂效应
染料
bridged compounds
cyanines
solvent effects
absorption spectra
linear
