摘要
本文研究了五个吡喃方酸菁染料的溶剂效应 ,发现最大吸收峰波数υ与函数f(n ,ε)存在较好的线性关系 ,而Bayliss函数项 (n2 - 1 ) /(2n2 +1 )决定了吸收光谱的位移变化Δυ ,同时还分析了氢键相互作用对理论函数模型的误差 .根据染料的聚集动力学证实了染料在正丙醇 /水 (4∶2 1 ,体积比 )体系中确有二聚体的产生 ,并发现了两组不同的聚集特性 .此外 ,使用APCI MS质谱技术证实Dye 3二氯甲烷浓溶液中也产生了二聚体 .
Solvent effects of five novel pyrylium squarylium cyanine dyes in thirteen different solvents were studied. It was found that the positive solvatochromism of the dyes was dependent on the function f(n,ε) with good linearity. The hydrogen bond effect of the solvents was also discussed. Dimers of the dyes in n propanol/water system were investigated and two different aggregation properties were found. Dimer was also detected in dichloromethane with the aid of APCI Mass spectra.
出处
《感光科学与光化学》
EI
CSCD
2000年第4期308-315,共8页
Photographic Science and Photochemistry
基金
国家自然科学基金!资助 (6 96 770 0 3)
