影像科学与光化学 ›› 1996, Vol. 14 ›› Issue (1): 32-37.DOI: 10.7517/j.issn.1674-0475.1996.01.32

• 研究论文 • 上一篇    下一篇

N-芳基马来酰亚胺与硫代硫酸钠的电荷转移络合物研究

英柏宁, 洪丽萍, 金玉仁   

  1. 中山大学化学系, 广州510275
  • 收稿日期:1995-07-03 修回日期:1995-10-17 出版日期:1996-02-20 发布日期:1996-02-20
  • 通讯作者: 英柏宁
  • 基金资助:
    国家自然科学基金

STUDIRS ON THE CHARGE TRANSFER COMPLEXES OF N-ARYLMALEIMIDES WITH SODIUM THIOSULFATE

YING Baining, HONG Liping, JIN Yuren   

  1. Department of Chemistry, Zhongshan University, Guangzhou 510275, P. R. China
  • Received:1995-07-03 Revised:1995-10-17 Online:1996-02-20 Published:1996-02-20

摘要: 本文以硫代硫酸根离子作为电荷给体(D),系列N-芳基取代马来酰亚胺(RPhMI)作为电荷受体(A),用含水5%的二甲基亚砜(95%DMSO)为溶剂,以紫外可见分光光度法研究了RPhMI与S2O32-作用生成的电荷转移(CT)络合物。以其CT光谱计算了RPhMI的电子亲合能(EA).测定了CT络合物的生成常数K.结果显示,弱的受体N-马来酰亚胺与强的给体硫代硫酸根负离子可以生成稳定的CT络合物。文章还讨论了CT络合物的可能结构及取代基极性与CT络合物的稳定性关系。

关键词: N-芳基马来酰亚胺, 硫代硫酸钠, 电荷转移络合物, 电子亲合能

Abstract: The Charge transfer(CT)complexes formed between N-arylmaleimides(RPhMI)as the acceptors and thiosulfate anion(S2O32-) as donor in 95% DMSO/H2O were studied by UV-Vis spectroscopy.The electron affinities(EA)of RPhMI had been calculated from the CT spectra,And the formation constants(K)of the CT complexes were determined.The results indicate that weak acceptors,N-arylmaleimides could form stable CT complexes with the thiosulfate anion which acts as a strong donor,The possible structure of the CT complexes and the relationship of their stability and the substituent polarlity of RPHMI were discussed.

Key words: N-arylmaleimides, sodium thiosulfate, charge transfer complex, electron affinity