影像科学与光化学 ›› 1993, Vol. 11 ›› Issue (1): 28-34.DOI: 10.7517/j.issn.1674-0475.1993.01.28

• 研究论文 • 上一篇    下一篇

分子内电荷转移化合物发光行为的研究——N,N-二甲氨基苯乙烯基偏二氰乙烯的发光行为

汪鹏飞, 吴世康   

  1. 中国科学院感光化学研究所 北京 100101
  • 收稿日期:1992-01-03 修回日期:1992-04-08 出版日期:1993-02-20 发布日期:1993-02-20
  • 通讯作者: 吴世康

A STUDY ON THE PHOTOEMISSION BEHAVIOR OF INTRA-MOLECULAR CHARGE TRANSFER COMPOUNDS--N,N-DIMETHYLAMINOSTYRYLMALONONITRILE

WANG PENG-FEI, WU SHI-KANG   

  1. Institute of Photographic chemistry, Acadcmia Sinica, Beijing 100101, P. R. China
  • Received:1992-01-03 Revised:1992-04-08 Online:1993-02-20 Published:1993-02-20

摘要: 合成了二种新的分子内电荷转移化合物:双(p-N,N-二甲氨基苯乙烯基)偏二氰乙烯(Ⅱ)及(p-N,N-二甲氨基苯乙烯基)苯基偏二氰乙烯(Ⅱ)。并对它们在不同极性溶剂中的光谱和光物理行为进行了研究。结果表明:化合物(Ⅰ)的荧光量子产率随溶剂极性增大而不断提高,而化合物(Ⅱ)的荧光量子产率则随溶剂极性增大出现了一极大值。对这一现象的产生进行了初步讨论。

关键词: 分子内电荷转移, N,N-二甲氨基苯乙烯基偏二氰乙烯, 荧光量子产率, 溶剂效应

Abstract: In this work, two new intramolecular charge transfer compounds [Bis(p-N,N-dimethyl-aminostyryl)malononitrile (Ⅰ) and (p-N, N-dimethylaminostyryl)phenylmalononitrile(Ⅱ)] were synthesized and characterized. The spectra and photophysical behavior were studied in diffe-cent solvents. Results showed that the fluorescence quantum yield for compound (Ⅰ) increased, but that for compound (Ⅱ) had a maximum with the increasing of the solvent polarity. This phenomenon was discussed preliminarily.

Key words: intramolecular charge transfer, p-N,N-dimethylaminostyrylmalononitrile, fluorescence quantum yield, solvatochromism