苯并吲哚二碳菁染料的合成及性质研究

Synthesis and properties of benzindodicarbocyanine dyes

为合成了2种新型的多甲川链上含氯取代的对称型苯并吲哚二碳菁染料,通过紫外-可见光谱、红外光谱、氢核磁共振谱和质谱对所得产物进行了表征。用紫外-可见光谱仪研究了溶剂、温度及光照时间对这2种染料吸收光谱的影响。结果表明,随着溶剂折射率n的增大,2种染料的最大吸收波长均有一定的红移;与阴离子为p-CH3C6H4SO3-的染料比较,阴离子为PF6-的染料具有较大的摩尔消光系数[λmax=676 nm,ε=2.45×105mol/(L.cm)]和良好的光、热稳定性。为合成稳定的、性能优良的光存储介质提供了实验基础。

For synthesizing two novel symmetric benzindodicarbocyanine dyes containing chloro-substituent in polymethine chain, the products were characterized by UV-vis, IR, ^1H NMR and Ms. The effects of different solvents, temperatures and illumination time on absorption spectra of two dyes were studied by UV-vis absorption spectroscopy. The results indicate that the maximum absorption wavelength of two dyes has a red-shift with the increasing of refractive index of solvents, and the dye containing PF6^- anion has higher molar extinction coefficient [λmax =676 nm,ε =2.45 × 10^5 mol/（L · cm）], better photostability and thermostability than the dye containing p-CH3C6H4SO3^- anion. It offers references to synthesize stable optical storage materials.