高等学校化学学报 ›› 1990, Vol. 11 ›› Issue (11): 1254.

• 研究论文 • 上一篇    下一篇

1,4-苯并二氮杂-2-酮的电荷转移性质

英柏宁, 欧阳洁翔, 徐贤恭   

  1. 中山大学化学系, 510275
  • 收稿日期:1989-02-20 出版日期:1990-11-24 发布日期:1990-11-24
  • 通讯作者: 英柏宁
  • 基金资助:

    中山大学科研基金

The Characteristics of Charge Transfer of 1,4-Benzodiazepin-2-ones

Ying Baining, Ouyang Jiexiang, Xu Xiangong   

  1. Department of Chemistry, Zhongshan University, Guangzhou, 510275
  • Received:1989-02-20 Online:1990-11-24 Published:1990-11-24

摘要: 本文用分光光度法测定了标题化合物分别与TCNE和对甲苯酚钾形成的电荷转移络合物的电子跃迁能hvcr并计算了它们的电子亲合力(EA)和电离势(Ip),还测定了络合物的热力学常数(K,ΔH,ΔS)。结果表明,该化合物不但可以作为电荷受体,也可以作为电荷给体。处于分子7位取代基的Hammett常数σ与hvcr(或ΔH)有线性关系。

关键词: 1, 4-苯并二氮杂草-2-酮, 电荷转移络合物, 电子亲合力, 电离势

Abstract: The interaction of 1,4-benzodiazepin-2-ones, the sedatives and muscle relaxants in medicine, with tetracyanoethylene or potassium p-methylphenoxide can form charge transfer complexes respectively. Using spectrophotometric method, the electron affinity(EA) and the ionizaton potential (Ip) of the title compounds are calculated with the energy of electron transfer hvCT. The thermodynam-ic constants(K, △H, △S) of the complexes are determined as well. The results show that 1,4-benzo-diazepin-2-ones can not only act as the charge acceptors but also as the charge donors. The hvCT or △Hvs Hammett substituent constant σ at position 7 of the molecule gives a linear relationship.

Key words: 1,4-Benzodiazepin-2-ones, Charge transfer complex, Electron affinity, Ionization poten-tial

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