高等学校化学学报 ›› 1986, Vol. 7 ›› Issue (1): 47.

• 研究论文 • 上一篇    下一篇

反,反-1,4-双[β-(4-取代苯基)乙烯基]苯衍生物紫外光谱的溶剂效应

薛价猷, 只金芳, 张一宝, 杨学瑾   

  1. 南开大学化学系
  • 收稿日期:1984-09-08 出版日期:1986-01-24 发布日期:1986-01-24

The Solvent Effects on UV-Vis Spectra of Some 1,4 Bis[β-(4-Substituted Phenyl)-Ethenyl] Benzene Derivatives

Xue Jieyou, Zhi Jinfang, Zhang Yibao, Yang Xuejin   

  1. Department of Chemistry, Nankai University, Tianjin
  • Received:1984-09-08 Online:1986-01-24 Published:1986-01-24

摘要: 测定了某些反,反-1,4-双[β-(4-取代苯基)乙烯基]苯衍生物在17种溶剂及不同比例的非极性混合溶剂中的紫外光谱,一般,最大吸收峰位置随溶剂的折光系数增大而红移,同时,在极性、非极性及不同比例非极性混合溶剂中紫外光谱的vmax值与(n2-1)/(2n2+1)之间呈线性关系。

Abstract: In this paper, the UV-Vis spectra of some 1, 4-bisβ-(4-substituted phenyl)-ethenyl] benzene derivatives in seventeen solvents or binary nonpolar mixed solvents (e.g., benzene-cyclohexane, bezene-n-hexane, carbon disulfide-cyclohexane, etc.) have been measured. In general, the absorption maxima λmax have a bathochromic shift with increasing refractive index n of the solvent. Some linear relationships between vmax and n or (n2 -1)/(2n2 +1) are obtained, respectively.

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