一种含苯并吡喃潜在染料的合成及晶体结构  

Synthesis and Crystal Structure of a Potential Chromene-Derived Dye

作　　者：吴腊梅[1] 陈进 蔡烨[1] 黄正喜[1] 赵新筠[1] Wu Lamei;Chen Jin;Cai Ye;Huang Zhengxi;Zhao Xinyun;Chen Jin;Cai Ye(College of Chemistry and Materials Science,South.Central University for Nationalities,Wuhan 430074)

机构地区：[1]中南民族大学化学与材料科学学院,武汉430074

出　　处：《中南民族大学学报（自然科学版）》2018年第1期15-19,共5页Journal of South-Central University for Nationalities：Natural Science Edition

基　　金：湖北省自然科学基金资助项目(2008CDA067);中央高校基本科研业务费专项资项目资助(CZZ17002)

摘　　要：合成了一个含苯并吡喃基团的鲜红色化合物2 N'-{1-[7-(二乙氨基)-2-氧-2H-苯并二氢吡喃-3-]亚乙基}苯甲酰肼.单晶X-衍射分析结果表明:化合物2属于斜方晶系,P2(1)2(1)2空间群.酰胺键共振成两性离子结构使分子内形成两个N—H…O氢键,这种分子内氢键环使得两侧苯环和苯并吡喃环几乎共平面,二面角仅仅为3.0(1)度,整个分子呈平面结构,令其具有作为染料分子的潜力.A chromene-derived bright red compound N′-{1-[7-(diethylamino)-2-oxo-2H-chromen-3-yl]ethylidene}benzohydrazide(compound2)was synthesized.Single crystal X-ray diffraction analysis showed that the compound belongedto the orthorhombic P2(1)2(1)2space group.Two N2-H…O1hydrogen bonds were formed intramolecularly by ioniczwitterionic resonance structures of the amide bond.The intramolecular hydrogen bonds rendered the benzene ring and thechromene ring on both sides almost coplanar,of a dihedral angle of only3.0(1)o,suggesting that the compound could be apotential dye molecule.

关 键 词：苯并吡喃 氢键 两性离子 酰胺共振结构 染料 

分 类 号：TQ25[化学工程—有机化工] O621.3[理学—有机化学]