取代基对吡唑衍生物发光行为的影响

The Effect of Substitution on the Emission Behavior of Pyrazoline Derivatives

对两种带有不同取代基吡唑啉化合物的光谱和光物理行为进行了比较研究．结果表明，吡唑啉环３－位处所联基团推一拉电子能力的改变对化合物的荧光量子产率、荧光猝灭等有巨大影响．这是由吡唑啉化合物本身的结构特征所决定的．

A comparative study on the spectroscopy and photo-physical behavior of differential substituted pyrazoline has been carried out in this work. Results indicate that the change of the elec- tronic donating and withdrawing ability of the substitution group attached at the 3-positopon on the pyrazoline ring effectes strongly on the fluorescence quantum yield and the fluorescence quenching of these compounds. This is determined by the structural characterization of pyrazoline compounds. The Phenomenon described above is discussed in detail in this paper.