磺化金属酞菁的溶剂效应

Solvent Effects of Sulfonated Phthalocyanine

文章测试了5种磺化金属酞菁在7种不同极性溶剂中的吸收光谱,用N icol理论研究了金属酞菁染料的溶剂效应。实验和理论结果表明,此类化合物最大吸收峰的波数与函数f(n,ε)存在良好的线性关系,线性相关系数都在0.93以上;而Bayliss函数项(n2-1)/(2n2+1)决定了最大吸收波长(λm ax)的位移变化,λm ax总体上随着溶剂折射率的增大而蓝移,随着溶剂极性的增强而红移。基于此结果,提出了通过选择合适的溶剂调节酞菁染料吸收峰的有效方法,从而使酞菁染料更好地应用于激光防护。

The absorption spectra of five sulfonated phthalocyanines in seven different solvents are measured,and the solvent effects of phthalocyanines are investigated using Nicol theory.It is found that the maximum absorption wavelength(λ_(max)) of the phthalocyanine compound is linearly dependent on the function f(n,ε),the correlation coefficient is greater than 0.93,and it is mainly related to Bayliss function.The maximum absorption wavelength(λ_(max)) has a tendency of blue shift with the increase of refractive index of solvent,while a tendency of red shift with the increase of solvents polarity.Based on these results,an efficient method of choosing proper solvent to adjust the λ_(max) of the phthalocyanine compound is put forward,so that the phthalocyanine compounds can be better applied in laser protection.