Huang Qiu-Ying, Zhang Yu-Hong, Meng Xiang-Ru
Department of Chemical Engineering, Henan Polytechnic Institute, 473009 Nanyang, Henan, People's Republic of China.
The College of Chemistry and Molecular Engineering, Zhengzhou University, 450001 Zhengzhou, Henan, People's Republic of China.
Acta Crystallogr C Struct Chem. 2015 Apr;71(Pt 4):306-10. doi: 10.1107/S2053229615005422. Epub 2015 Mar 20.
In the title coordination polymer, catena-poly[[bis[{1-[(1H-benzimidazol-2-yl-κN(3))methyl]-1H-tetrazole}zinc(II)]-bis(μ4-pentane-1,5-dioato-1:2:1':2'κ(4)O(1):O(1'):O(5):O(5'))] methanol disolvate], {[Zn(C5H6O4)(C9H8N6)]·CH3OH}n, each Zn(II) ion is five-coordinated by four O atoms from four glutarate ligands and by one N atom from a 1-[(1H-benzimidazol-2-yl)methyl]-1H-tetrazole (bimt) ligand, leading to a slightly distorted square-pyramidal coordination environment. Two Zn(II) ions are linked by four bridging glutarate carboxylate groups to generate a dinuclear [Zn2(CO2)4] paddle-wheel unit. The dinuclear units are further connected into a one-dimensional chain via the glutarate ligands. The bimt ligands coordinate to the Zn(II) ions in a monodentate mode and are pendant on both sides of the main chain. In the crystal, the chains are linked by O-H···O and N-H···O hydrogen bonds into a two-dimensional layered structure. Adjacent layers are further packed into a three-dimensional network through van der Waals forces. A thermogravimetric analysis was carried out and the photoluminescent behaviour of the polymer was investigated.
在标题配位聚合物链状聚[[双[{1-[(1H-苯并咪唑-2-基-κN(3))甲基]-1H-四唑}锌(II)]-双(μ4-戊烷-1,5-二酸根-1:2:1':2'κ(4)O(1):O(1'):O(5):O(5'))]甲醇溶剂合物]，{[Zn(C5H6O4)(C9H8N6)]·CH3OH}n中，每个Zn(II)离子由来自四个戊二酸酯配体的四个O原子和来自1-[(1H-苯并咪唑-2-基)甲基]-1H-四唑(bimt)配体的一个N原子五配位，形成略微扭曲的四方锥配位环境。两个Zn(II)离子通过四个桥连的戊二酸羧酸根基团相连，生成一个双核[Zn2(CO2)4]桨轮单元。双核单元通过戊二酸酯配体进一步连接成一维链。bimt配体以单齿模式与Zn(II)离子配位，并悬垂在主链两侧。在晶体中，链通过O-H···O和N-H···O氢键连接成二维层状结构。相邻层通过范德华力进一步堆积成三维网络。进行了热重分析并研究了该聚合物的光致发光行为。
