Effect of substituents and conjugated chain length on the UV spectra of α,ω-di-substituted phenyl polyenes
作者:Chenzhong Cao、Yun Zhu、Guanfan Chen
DOI:10.1002/poc.3178
日期:2013.10
groups, the influence of interaction of polarity parameters on the maximum wavelength energy must also be considered. In addition, the exploration was also made for the quantifying correlation of UV absorption maximum wavelength energy with the conjugated polarizability potential CPP replacing the parent molecular absorption energy. And the results indicate that the equation with CPP parameters is more accurate
合成了一系列α,ω-二取代的苯基多烯p-X –Ph(CH = CH)n Ph– p-Y(n = 1、2或3),并且它们的紫外线(UV)吸收最大值确定波长。进行了分子结构与最大波长能量(波数/ cm -1)之间的相关性。结果表明,标题化合物的最大波长能量主要受取代基激发态参数和母体分子的最大波长能量影响。但是,这两个影响因素不是独立的,取代基的作用受母体分子吸收能支配。对于含有NO 2或NH 2的化合物对于基团,还必须考虑极性参数相互作用对最大波长能量的影响。另外,还进行了定量研究UV吸收最大波长能量与共轭极化电位CPP代替母体分子吸收能量的相关性的探索。结果表明,带有CPP参数的方程更加精确,方便。版权所有©2013 John Wiley&Sons,Ltd.