物理化学学报 >> 1986, Vol. 2 >> Issue (02): 119-124.doi: 10.3866/PKU.WHXB19860204

研究论文 上一篇    下一篇

Rh6G-DMTC分子间能量转移的荧光光谱研究

陈文驹*; 林世雄; 林美荣; 张桂兰; 李铁津; 滕秋克   

  1. 南开大学物理系; 吉林大学化学系
  • 收稿日期:1985-03-27 修回日期:1985-06-28 发布日期:1986-04-15
  • 通讯作者: 陈文驹

FLUORESCENCE SPECTROSCOPIC STUDIES ON INTERMOLECULAR ENERGY TRANSFER OF Rh6G-DMTC MIXTURE SOLUTION

Chen Wenju*; Lin Shixiong; Lin Meirong; Zhang Guilan; Li Tiejin; Teng Qiuke   

  1. Department of Physics, NanKai University; Department of Chemistry, Jilin University
  • Received:1985-03-27 Revised:1985-06-28 Published:1986-04-15
  • Contact: Chen Wenju

摘要: 利用N_2激光器作为激发光源, 测量若丹明6G(Rh6G)和N,N′-二甲基噻碳菁碘盐(DMTC)不同浓度混合的乙醇溶液的荧光光谱, 证明 Rh6G-DMTC组成施主-受主对, 存在着分子间能量转移效应。通过对DMTC荧光强度与Rh6G浓度的关系的测量, 讨论了Rh6G-DMTC能量转移的机制, 并且导出了辐射转移和Förster转移两种典型过程中受主荧光强度与施主浓度的关系式。

Abstract: Using N_2 laser as an excited source, the fluorescence spectra of ethanol solu- tions of rhodamine 6G(Rh6G) and N,N′-dimethyl-carbothiocyanine iodide(DMTC) mixed at various concentrations have been studied. The results show that Rh6G and DMTC compose donor-accepter pair and exist intermolecular energy transfer effect. By means of measuring the relation between DMTC fluorescence intensity and Rh6G concentration, we have discussed the mechanism of Rh6G-DMTC energy transfer and have deduced the relative expressions of accepter fluorescence intensity and donor concentraton for both radiative transfer and Förster transfer processes.