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采用Sonagashira偶联反应和N-烷基化反应合成了含有咔唑和偶氮苯的乙炔衍生物:3-乙炔基-9-(4-[4-(硝基)苯基偶氮苯]氧)亚丁基咔唑3。其结构通过IR,1H NMR,13C NMR,元素分析和X-射线单晶衍射法测定。标题化合物属单斜晶系,P21/c空间群;a=9.238(3),b=28.240(8),c=9.783(3),β=94.253(3)°,V=2545.2(13)3,Z=4。结构分析证实化合物中的偶氮苯基团采取反式构型,扭转角为178.0(4)°,两个苯环的二面角为7.1(2)°。咔唑平面与偶氮苯刚性面几乎垂直,所成二面角为86.2(2)°。当用557 nm波长光激发,化合物在592 nm波长处表现出强的橙光发射。
Acetylene derivatives containing carbazoles and azobenzenes were synthesized by Sonagashira coupling and N-alkylation: 3-ethynyl-9- (4- [4- (nitro) phenylazobenzene] ) Butylenecarbazole 3. Its structure was determined by IR, 1H NMR, 13C NMR, elemental analysis and X-ray single crystal diffractometry. The title compound is monoclinic, P21 / c space group; a = 9.238 (3), b = 28.240 (8), c = 9.783 (3) 3, Z = 4. The structural analysis confirmed that the azobenzene group in the compound has a trans configuration with a twist angle of 178.0 (4) ° and a dihedral angle of 7.1 (2) ° for both benzene rings. Carbazole plane and azobenzene rigid surface almost vertical, the resulting dihedral angle of 86.2 (2) °. When excited with 557 nm light, the compound showed strong orange emission at 592 nm.