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本文报道了ｐ－（Ｎ，Ｎ－二甲氨基）肉桂酸乙酯（ＤＭＡＣ）在十二酸（ＬＡ）聚集体中的光谱和光化学性质．这种肉桂酸衍生物的吸收和发射光谱表现出典型的分子内电荷转移的特征，在十二酸存在下，观察到ＤＭＡＣ激基缔合物荧光，荧光强度随ＤＭＡＣ浓度增加而增加，与普通溶液中的反应相比，十二酸聚集体中的ＤＭＡＣ具有较大的光二聚反应速度．用荧光光谱跟踪反应的结果表明，ＤＭＡＣ激基缔合物具有较ＤＭＡＣ单体更高的光化学活性。
In this paper, the spectral and photochemical properties of p- (N, N-dimethylamino) cinnamic acid ethyl ester (DMAC) in lauric acid (LA) aggregates were reported. The absorption and emission spectra of this cinnamic acid derivative showed typical intramolecular charge transfer characteristics. Fluorescence of DMAC excimer was observed in the presence of lauric acid. Fluorescence intensity increased with increasing concentration of DMAC, The DMAC in the lauric acid aggregate has a greater rate of photodimerization than the reaction in solution. The results of tracking reaction with fluorescence spectroscopy showed that DMAC excimer had higher photochemical activity than DMAC monomer.