Chen Ning Ning, Ni Jian Ning, Wang Jun, Tao Jian Qing
School of Chemistry & Chemical Engineering, Yancheng Teachers University, Yancheng 224051, People's Republic of China.
Acta Crystallogr C Struct Chem. 2019 Feb 1;75(Pt 2):196-199. doi: 10.1107/S2053229619000986. Epub 2019 Jan 29.
A novel two-dimensional (2D) Zn coordination framework, poly[μ-1,3-bis(2-methyl-1H-imidazol-1-yl)benzenezinc(II)], [Zn(CHNO)(CHN)] or [Zn(NO-BDC)(1,3-BMIB)] [1,3-BMIB is 1,3-bis(2-methyl-1H-imidazol-1-yl)benzene and NO-HBDC is 5-nitrobenzene-1,3-dicarboxylic acid], has been prepared and characterized by IR, elemental analysis, thermal analysis and single-crystal X-ray diffraction. Single-crystal X-ray diffraction analysis revealed that the compound is a new 2D polymer with a 6 topology parallel to the (10-2) crystal planes based on left-handed helices, right-handed helical NO-BDC-Zn chains and [Zn(1,3-BMIB)] clusters. In the crystal, adjacent layers are further connected by C-H...O hydrogen bonds, C-H...π interactions, C-O...π interactions and N-O...π interactions to form a three-dimensional structure in the solid state. In addition, the compound exhibits strong fluorescence emissions in the solid state at room temperature.
一种新型二维（2D）锌配位框架，聚[[μ-1,3-双（2-甲基-1H-咪唑-1-基）苯]（μ-5-硝基苯-1,3-二羧酸根）锌（II）]，[Zn(CHNO)(CHN)] 或 [Zn(NO-BDC)(1,3-BMIB)] [1,3-BMIB 为 1,3-双（2-甲基-1H-咪唑-1-基）苯，NO-HBDC 为 5-硝基苯-1,3-二羧酸]，已通过红外光谱、元素分析、热分析和单晶 X 射线衍射进行了制备和表征。单晶 X 射线衍射分析表明，该化合物是一种新型二维聚合物，基于左手螺旋、右手螺旋 NO-BDC-Zn 链和 [Zn(1,3-BMIB)] 簇，具有与（10-2）晶面平行的 6 拓扑结构。在晶体中，相邻层通过 C-H...O 氢键、C-H...π 相互作用、C-O...π 相互作用和 N-O...π 相互作用进一步连接，在固态下形成三维结构。此外，该化合物在室温固态下表现出强烈的荧光发射。
