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首页> 外文期刊>Acta Crystallographica Section E: Crystallographic Communications >Crystal structure of poly[(4-amino-pyridine-κN)(N,N-di-methyl-formamide-κO)(μ3-pyridine-3,5-di-carboxyl-ato-κ3N:O3:O5)copper(II)]
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Crystal structure of poly[(4-amino-pyridine-κN)(N,N-di-methyl-formamide-κO)(μ3-pyridine-3,5-di-carboxyl-ato-κ3N:O3:O5)copper(II)]

机译：聚[（4-氨基吡啶-κN）（N，N-二甲基甲酰胺-κO）（μ3-吡啶-3,5-二羧基-κ3N：O3：O5）铜的晶体结构II）]

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摘要

The title compound, [Cu(C7H3NO4)(C5H6N2)(C3H7NO]n, is an amino-function-alized chiral metal–organic framework with (10,3)-a topology. It has been constructed via the assembly of the achiral triconnected pyridine-3,5-di-carboxyl-ate (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-amino-pyridine (4-APY) ligand and the O atom of a terminal N,N-di-methyl-formamide (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.
机译：标题化合物[Cu（C7H3NO4）（C5H6N2）（C3H7NO）n是具有（10,3）-拓扑结构的氨基官能化手性金属-有机骨架，它是通过非手性三联体的组装而构建的吡啶-3,5-二羧酸酯（3,5-PDC）结构单元和三连接的CuII原子，每个CuII离子分别由三个晶体学独立的3,5-的两个O原子和一个N原子配位PDC配体CuII离子的方锥（CuN2O3）配位几何结构由末端4-氨基吡啶（4-APY）配体的N原子和末端N，N-二甲基的O原子完成-甲酰胺（DMF）配体生成三联的“ T”形二级结构单元，该结构在生成的（10,3）-a拓扑结构中变为三角形，在三维结构中，弱的NH3O氢键为观察到其中供体NH基团由4-APY配体提供并且受体O原子由3,5-PDC配体的非配位羧酸酯O原子提供。

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