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链状聚[[四水合铜（II）]-μ-吡嗪-2-甲酰胺-κ(3)N(4):N(1),O-[双-(硫酸根-κO)铜（II）]-μ-吡嗪-2-甲酰胺-κ(3)N(1),O:N(4)]

catena-Poly[[tetra-aqua-copper(II)]-μ-pyrazine-2-carboxamide-κ(3)N(4):N(1),O-[bis-(sulfato-κO)copper(II)]-μ-pyrazine-2-carboxamide-κ(3)N(1),O:N(4)].

作者信息

Shirvan Sadif A, Haydari Dezfuli Sara

机构信息

Department of Chemistry, Omidieh Branch, Islamic Azad University, Omidieh, Iran.

出版信息

Acta Crystallogr Sect E Struct Rep Online. 2012 Aug 1;68(Pt 8):m1082-3. doi: 10.1107/S1600536812031844. Epub 2012 Jul 18.

DOI:10.1107/S1600536812031844
PMID:22904746
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3414139/
Abstract

In the crystal of the title polymeric compound, Cu(2)(SO(4))(2)(C(5)H(5)N(3)O)(2)(H(2)O)(4), two independent Cu(II) atoms are located on individual inversion centers. One Cu(II) atom is coordinated by four water mol-ecules and two pyrazine-2-carboxamide ligands in a distorted O(4)N(2) octa-hedral geometry; the other is N,O-chelated by two pyrazine-2-carboxamide ligands and further coordinated by two sulfate anions in a distorted O(4)N(2) octa-hedral geometry. The pyrazine-2-carboxamide ligands bridge the Cu(II) atoms to form a polymeric chain running along [110]. The crystal structure features N-H⋯O, O-H⋯O and weak C-H⋯O hydrogen bonds.

摘要

在标题聚合物化合物[Cu₂(SO₄)₂(C₅H₅N₃O)₂(H₂O)₄]ₙ的晶体中，两个独立的Cu(II)原子位于各自的反演中心上。一个Cu(II)原子由四个水分子和两个吡嗪 - 2 - 甲酰胺配体以扭曲的O₄N₂八面体几何构型配位；另一个由两个吡嗪 - 2 - 甲酰胺配体进行N,O - 螯合，并进一步由两个硫酸根阴离子以扭曲的O₄N₂八面体几何构型配位。吡嗪 - 2 - 甲酰胺配体连接Cu(II)原子形成沿[110]方向延伸的聚合物链。晶体结构具有N - H⋯O、O - H⋯O和弱C - H⋯O氢键。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ecf7/3414139/603b49074415/e-68-m1082-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ecf7/3414139/275aa94540d1/e-68-m1082-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ecf7/3414139/603b49074415/e-68-m1082-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ecf7/3414139/275aa94540d1/e-68-m1082-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ecf7/3414139/603b49074415/e-68-m1082-fig2.jpg

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