化学学报 ›› 1987, Vol. 45 ›› Issue (1): 80-82. 上一篇    下一篇

研究论文

苯二甲酸二甲酯对咔唑荧光的淬灭

陈尚贤;牛二平   

  1. 中国科学院化学研究所
  • 发布日期:1987-01-15

Fluorescence quenching of carbazole by dimethyl terephthalate or dimethyl phthalate

CHEN SHANGXIAN;NIU ERPING   

  • Published:1987-01-15

用邻苯二甲酸二甲酯(DMTP)可猝灭咔唑的荧光,由此相反,在DMTP-乙基咔唑体系中,末观察到激基复合物荧光.本文对此解释为激基复合物的形成能力不仅依赖于电子给予体的电离势和电子接受体的电子亲和力,而且还取决于附着于电子给予体和电子接受体的生色团上侧基间的相互作用.

关键词: 咔唑 P, 对苯二甲酸 P, 间苯二甲酸 P, 羧酸酯, 猝灭效应, 邻苯二甲酸 P, 荧光分光光度法, 荧光衰减, 激基缔合物, 电子碰撞

Fluorescence of carbazole (Cz) was quenched by di-Me terephthalate (DMTP). In contrast to the system DMTP-ethylcarbazole (EtCz) fluorescence of exciplex was not observed The difference of exciplex formation ability between DMTP-EtCz and DMTP-Cz can be qual. explained by the fact that exciplex formation ability is not only dependent on the ionization potential of the donor and electron affinity of the acceptor but also dependent on the interaction between the side groups attached to the chromophores of the donor and acceptor mols.

Key words: CARBAZOLE P, P-BENZENEDICARBOXYLIC ACID P, M-BENZENEDICARBOXYLIC ACID P, CARBOXYLIC ACID ESTER, QUENCHING EFFECTS, O-BENZENEDICARBOXYLIC ACID P, FLUOROSPECTROPHOTOMETRY, FLUORSCENCE DECAY, EXCIMER, ELECTRON COLLISIONS

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