Crystal structure of poly[(4-aminopyridine-κN)(N,N-dimethylformamide-κO)(μ3-pyridine-3,5-dicarboxylato-κ3N:O3:O5)copper(II)]

Acta Crystallographica Section E: Crystallographic Communications

Xiu-Ni Hua¹  Cheng-Chen Shen¹  Lei Han¹ 

[1] Institute of Inorganic Materials, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, People's Republic of China;

关键词: crystal structure;    metal–organic framework;    chiral network;    (10,3)-a topology;   

DOI  :  10.1107/S205698901600342X

来源: DOAJ

【 摘 要 】

The title compound, [Cu(C7H3NO4)(C5H6N2)(C3H7NO]n, is an amino-functionalized chiral metal–organic framework with (10,3)-a topology. It has been constructed via the assembly of the achiral triconnected pyridine-3,5-dicarboxylate (3,5-PDC) building block and a triconnected CuII atom. Each CuII ion is coordinated by two O atoms and one N atom, respectively, of three crystallographically independent 3,5-PDC ligands. The square-pyramidal (CuN2O3) coordination geometry of the CuII ion is completed by an N atom of a terminal 4-aminopyridine (4-APY) ligand and the O atom of a terminal N,N-dimethylformamide (DMF) ligand to give a triconnected `T'-shaped secondary building unit, which becomes trigonal in the resulting (10,3)-a topology. In the three-dimensional structure, weak N—H...O hydrogen bonds are observed in which the donor N—H groups are provided by the 4-APY ligands and the acceptor O atoms are provided by the non-coordinating carboxylate O atoms of the 3,5-PDC ligands.

【 授权许可】

Unknown