本文合成了六个多甲川苯乙烯型菁染料,研究了溶剂对其最大吸收波长、Stokes位移及荧光量子效率的影响。比较了两个典型的用来描写溶剂对吸收波长影响的McRae方程和Nicol方程,发现前者在这里更为适合。结果还表明,这些染料在不同溶剂中的Stokes位移较好地符合Lippert方程,溶剂性质对染料的荧光效率影响很大。 Six polymethylchlorethylene-type cyanine dyes were synthesized in this paper. The effects of solvent on their maximum absorption wavelength, Stokes shift and fluorescence quantum efficiency were studied. Comparing two typical McRae equation and Nicol equation describing the effect of solvent on absorption wavelength, we find that the former is more suitable here. The results also show that the Stokes shifts of these dyes in different solvents are in good agreement with the Lippert equation, and the solvent properties greatly affect the fluorescence efficiency of the dye.