苝分子低聚体的形成及其光谱性质

摘要

We report the conditions required for the formation of perylene oligomers, which are closely related to the crystal nuclei for the formation of perylene nanocrystal. The effects of water content and perylene concentration on aggregation were studied using fluorescence and absorption spectra. The spectra indicated that fluorescent J-type perylene oligomers were formed. An aggregation number of 9, and large equilibrium constant were obtained for the reaction.%探讨了苝分子低聚体的形成条件和影响因素,这些低聚体与晶核形成紧密相关.用荧光光谱和吸收光谱法研究了不同的水含量和苝浓度对聚集的影响,低聚体属于具有光活性的J型,能发红光.计算得到低聚体的聚集数为9,平衡常数数量级较大.