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取代基对二苯并富烯化合物紫外吸收光谱的影响可由取代基激发态参数σex CC和基态极性参数σp表达,用以上两参数比用σ+p单参数更准确.10多种性能不同的溶剂中对二苯并富烯化合物紫外吸收光谱的变化规律可以由σex CC,σp和溶剂显色参数E T(30)三参数共同表示,并且E T(30)比正辛醇/水中的分配系数logP表达溶剂效应更好.研究表明,二硫化碳可能不宜于作为溶剂来测定二苯并富烯化合物的紫外吸收光谱.
The influence of substituents on the UV absorption spectra of dibenzofunsilene compounds can be expressed by the substituent excited state parameter σex CC and the ground state polar parameter σp. The above two parameters are more accurate than the single parameter σ + p. More than 10 different The UV absorption spectra of dibenzofulvene in the solvent can be expressed by the three parameters σex CC, σp and the solvent color parameter ET (30), and the partition coefficient of ET (30) from n-octanol / water logP The solvent effect is better, and studies have shown that carbon disulfide may not be suitable as a solvent for the determination of the UV absorption spectrum of dibenzofulvene compounds.