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合成了具有强电子给体和强电子受体的D π A分子 5 (4 N ,N 二甲氨基苯乙烯基 ) (1H ,3H) 2 ,4,6 嘧啶三酮 (AB1)和 5 (4 N ,N 双十八烷基氨基苯乙烯基 ) (1H ,3H) 2 ,4,6 嘧啶三酮 (AB18) ,并对其电子光谱进行了研究 .AB18在环己烷中聚集体的吸收光谱及AB1和AB18的表面光电压谱在 45 0nm附近出现H 聚集体的谱带 ,比其在氯仿溶液中单体的ICT带蓝移了 30nm左右 .AB1和AB18固体及其高浓度的氯仿溶液分别在 6 2 0nm和 6 10nm附近出现来源于H 聚集体的激基缔合物的荧光 ,6 2 0nm带比单体红移 3 0 0 0cm-1左右 .还探讨具有强电子给体和受体的D π A分子间π π相互作用 .
D π A molecules 5 (4 N, N dimethylaminostyryl) (1H, 3H) 2, 4,6 pyrimidinetrione (AB1) and 5 (4) were synthesized with strong electron donor and strong electron acceptor N, N dioctadecylaminostyryl) (1H, 3H) 2, 4, 6 pyrimidinetrione (AB18) were synthesized and their electronic spectra were studied. Absorption spectra of aggregates of AB18 in cyclohexane And the surface photovoltage spectra of AB1 and AB18 appeared in the vicinity of 450 nm and the band of H aggregates appeared to be shifted by about 30 nm from the blue band of ICT monomer in chloroform solution.The AB1 and AB18 solids and their high concentrations of chloroform solution were 6 2 0nm and 6 10nm appeared from the H agglomeration of excimer excited fluorescence, 6 0 0nm band than the monomer redshift 30000cm-1 or about also have a strong electron donor and acceptor Π π interaction between D π A molecules.