对十个化合物的紫外吸收性能进行了测定。对其紫外吸收构效关系进行了探索,用振子强度f_n的概念来反映化合物的紫外吸收强度。结果表明f_n与PPP量子化学参数SOSC修之间存在着定量关系。在考虑到溶剂和不同取代基的影响后,发现紫外吸收频率和PPP量子化学参数——前线轨道能量差△E_(?),之间也有良好的线性关系。 The UV absorption properties of ten compounds were determined. The structure-activity relationship of UV absorption was explored, and the concept of oscillator strength f_n was used to reflect the UV absorption intensity of the compound. The results show that there is a quantitative relationship between f_n and PPP quantum chemical parameters SOSC repair. Taking into account the influence of solvents and different substituents, we found that there is a good linear relationship between UV absorption frequency and the quantum chemical parameter of PPP - frontier orbital energy difference △ E_ (?).