Acta Chimica Sinica ›› 1998, Vol. 56 ›› Issue (1): 37-40. Previous Articles     Next Articles

Original Articles

分子内扭转电荷转移的新荧光探针的研究

韦寿连;卢建忠;江云宝;许金钩   

  1. 国家教委材料和生命过程分析科学开放研究实;厦门大学化学系
  • 出版日期:1998-01-15 发布日期:1998-01-15

Study of novel fluorescent probes using twisted intramolecular charge tansfer

WEI SHOULIAN;LU JIANZHONG;JIANG YUNBAO;XU JINGOU   

  • Online:1998-01-15 Published:1998-01-15

The change in cave micro-invironment of β-cyclodextrin (β-CD) caused by methylation was investigated by using the twisted intramolecular charge transfer (TICT) of sodium diethylaminobenzoate (SDEAB) and sodium dimethylaminobenzoate (SDMAB) as fluorescent probes. The results indicte that the nonpolar β-CD cavity favors the formation of the TICT state of dialkylaminobenzoic acid-type molecules. It was demonstrated that the TICT fluorescence of SDEAB (or SDMAB)-β-MCD (methylated β-cyclodextrin) system could be used to detect methanol in aqueous solution.

Key words: METHANOL, CYCLODEXTRIN, CHARGE TRANSFER

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