1,5-双(取代苯基)-1,4-戊二烯-3-酮(简称取代双亚苄基丙酮)化合物的取代基对紫外吸收光谱的影响已有报道,但题示化合物的紫外光谱与Hammett常数的定量关系还未曾研究。我们测试了它们的紫外吸收光谱,发现取代基常数б_P与紫外吸收光谱的位移增量(△λρ)之间存在一定的线性关系。作者前文讨论了取代查尔酮和3H-吲哚盐类的紫外吸收光谱与Hammett常数的定量关系。1 实验部分 The influence of the substituents of 1,5-bis (substituted phenyl) -1,4-pentadiene-3-one (abbreviated as dibenzylideneacetone) compounds on the ultraviolet absorption spectrum has been reported but the The quantitative relationship between the UV spectrum and Hammett’s constant has not been studied. We tested their UV absorption spectra and found that there is a linear relationship between the substituent constant б_P and the increment of UV absorption (Δλρ). The authors previously discussed the quantitative relationship between UV absorption spectra and Hammett constants of substituted chalcones and 3H-indoles salts. 1 experimental part