4-[4-(2-吡啶基)苯乙烯基]-N,N-二正丁基苯胺的合成、晶体结构及光学性质

合成了具有D-π-A型结构的含吡啶基的新型有机化合物4-4-(2-吡啶基)苯乙烯基]-N,N-二正丁基苯胺，其结构经元素分析、UV和X射线衍射进行了表征。 利用单光子液体荧光光谱、单光子荧光量子产率、固体荧光光谱和荧光寿命探讨了它的光学性质。 该分子晶体属于三斜晶系,P-1空间群, 晶胞参数为：a=1.150 41(3) nm,b=1.457 46(4) nm,c=1.515 98(4) nm,Z=4,V=2.330 68(11) nm3,R1=0.096 2,wR2=0.263 0。 通过研究发现，目标化合物平面性好，分子为D-π-A型结构，分子间有C—H…π相互作用，使得它具有良好的光学性质。

Synthesis, Crystal Structure and Opical Properties of 4-[(trans-(2-Pyridyl))styryl]-N,N-dibutylbenzenamine

A new compound 4-(trans-(2-pyridyl))styryl]-N,N-dibutylbenzenamine has been synthesized and characterized by elemental analysis,UV,and X-ray single-crystal diffraction studies.The compound crystallizes in the triclinic system with space group P-1,a=1.15041(3) nm,b=1.45746(4) nm,c=1.51598(4) nm,Z=4,V=2.33068(11) nm3,R1=0.0962,wR2=0.2630.The result showed that the molecule with donor,π-conjugated bridge and acceptor(D-π-A) structure has good planarity,which results in effective electronic delocalization and increased intramolecular charge transfer.The molecules are linked by intermolecular CHπ.It is believed that π electrons play a significant role for their packing,which attributed it with higher Stock shifts in photoluminescence properties.