通过Wittig-Horner反应合成了两个四取代苯:1,2,4,5-四(4-N,N-二苯氨基苯乙烯基)苯 (TDASB)和1,2,4,5-四[4-N,N-二(4-溴苯基)氨基苯乙烯基]苯(TDBSB).目标化合物结构经过红外光谱、核磁共振谱、质谱和熔点确证,测定了它们在不同溶剂中的紫外光谱和荧光光谱.TDASB 和TDBSB在二氯甲烷中的最大吸收峰分别位于400和396nm,最大发射峰分别为493和491nm,荧光寿命分别为1.7022、3.633和1.2810、4.8473ns,讨论了Stokes位移与溶剂极性的关系.
Two novel 1,2,4,5- tetrasubstituted benzene, 1,2,4, 5-tetra (4-N, N-diphenylaminostyryl) benzene (TDASB) and 1,2, 4, 5-tetra (4-N, N-di(4"-bromophenyl) aminostyryl) benzene (TDBSB), were synthesized through Wittig-Horner reactions. Their structures were characterized by IR, NMR, MS, and melting points. The maximum absorption peaks in dichloromethane were at 400nm for TDASB and 396nm for TDBSB, respectively. The maximum emission wavelengths were at 493nm for TDASB and 491nm for TDBSB in dichloromethane, respectively. The fluorescence lifetime were 1. 7022, 3. 633ns for TDASB and 1. 2810, 4. 8473ns for TDBSB. The relationship of Stokes shift with solvent polarity was discussed.
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