应用化学

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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

潘月礼*,王欣,赵祖志,韦文美   

  1. (安徽医科大学基础医学院化学教研室 合肥 230032)
  • 收稿日期:2011-03-30 修回日期:2011-05-04 出版日期:2012-02-10 发布日期:2012-02-10
  • 通讯作者: 潘月礼,讲师; Tel:0551-5161138; E-mail:panyueli2004@163.com; 研究方向:光电功能材料
  • 基金资助:
    安徽省高等学校省级自然科学研究重点项目(KJ2010A190,KJ2011Z169),安徽省高等学校省级优秀青年人才基金项目(2009SQRZ045)

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

PAN Yueli *, WANG Xin, ZHAO Zuzhi, WEI Wenmei   

  1. (Department of Chemistry,College of Basic Medicine,Anhui Medical University,Hefei 230032,China)
  • Received:2011-03-30 Revised:2011-05-04 Published:2012-02-10 Online:2012-02-10
  • About author:

摘要: 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。

关键词: 吡啶, D-&, pi, -A结构, 光学性质, 平面性

Abstract: 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 C—H…π. It is believed that π electrons play a significant role for their packing, which attributed it with higher Stock shifts in photoluminescence properties.

Key words: Pyridine, D-&, pi, -A, Opical properties, Planarity

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