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丁烷 -1,4 -二铵双(吡啶 -2,6 -二羧酸根 -κO,N,O)镉(II)二水合物

Butane-1,4-diammonium bis-(pyridine-2,6-dicarboxyl-ato-κO,N,O)cadmate(II) dihydrate.

作者信息

Tabatabaee Masoumeh, Aghabozorg Hossein, Nasrolahzadeh Roghaieh, Roshan Leila, Firoozi Najmeh

出版信息

Acta Crystallogr Sect E Struct Rep Online. 2008 Sep 20;64(Pt 10):m1290. doi: 10.1107/S1600536808029395.

DOI:10.1107/S1600536808029395
PMID:21201034
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC2959406/
Abstract

In the title compound, (C(4)H(14)N(2))[Cd(C(7)H(3)NO(4))(2)]·2H(2)O, the Cd(II) ion is coordinated by four O atoms [Cd-O = 2.2399 (17)-2.2493 (17) Å] and two N atoms [Cd-N = 2.3113 (15) and 2.3917 (15) Å] from two tridentate pyridine-2,6-dicarboxyl-ato ligands in a distorted octa-hedral geometry. The uncoordinated water mol-ecules are involved in O-H⋯O and N-H⋯O hydrogen bonds, which contribute to the formation of a three-dimensional supra-molecular structure, along with π-π stacking inter-actions [centroid-centroid distances of 3.5313 (13) and 3.6028 (11) Å between the pyridine rings of neighbouring dianions].

摘要

在标题化合物(C₄H₁₄N₂)[Cd(C₇H₃NO₄)₂]·2H₂O中,Cd(II)离子由来自两个三齿吡啶 - 2,6 - 二羧酸根配体的四个O原子[Cd - O = 2.2399(17) - 2.2493(17)Å]和两个N原子[Cd - N = 2.3113(15)和2.3917(15)Å]配位,形成扭曲的八面体几何构型。未配位的水分子参与O - H⋯O和N - H⋯O氢键作用,这与π - π堆积相互作用[相邻二价阴离子的吡啶环之间的质心 - 质心距离为3.5313(13)和3.6028(11)Å]共同促成三维超分子结构的形成。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/29aa/2959406/6c4720ffcdac/e-64-m1290-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/29aa/2959406/43e903950ffa/e-64-m1290-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/29aa/2959406/6c4720ffcdac/e-64-m1290-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/29aa/2959406/43e903950ffa/e-64-m1290-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/29aa/2959406/6c4720ffcdac/e-64-m1290-fig2.jpg

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