1,3,5—三芳基—2—吡唑啉化合物光物理行为的研究

合成了一组带不同取代基的三芳基吡唑啉化合物,对它们在不同极性溶剂中的光物理行为(如荧光量子产率,荧光寿命等)进行了测定指出:这类化合物在光的激发下除存在有分子内共轭条件下的电荷转移行为外,还存在着分子内非共轭条件下的电子转移,本工作还以三芳基吡唑啉化合物为猝灭剂对氧鎓盐的荧光猝灭能力进行了研究,并对所得结果作了讨论。

A STUDY ON THE PHOTOPHYSICAL BEHAVIOR OF 1,3,5-TRIARYL-2-PYRAZOLINE COMPOUNDS

In this work, a series of triaryl pyrazoline compounds with different substituted groups have been synthesized. The photophysical behavior of these compounds including quantum yields and lifetime of fluorescence in solvents with different polarities has also been measured. Results indicated that except for the intramolecular conjugated charge transfer, there is intramolecular non-conjugated electron transfer existing in the excited state of these compounds. The fluorescence quenching of pyrylium salt has also been studied. The results obtained were discussed briefly.