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链状聚[[[四水合镧(III)]-二-μ-异烟酸根合-κ(4)O:O']氯化物]

catena-Poly[[[tetra-aqua-lanthanum(III)]-di-μ-isonicotinato-κ(4)O:O'] chloride].

作者信息

Zhao Jin-He

机构信息

Department of Chemical and Life Science, Baise University, Baise 533000, People's Republic of China.

出版信息

Acta Crystallogr Sect E Struct Rep Online. 2012 Jul 1;68(Pt 7):m972. doi: 10.1107/S1600536812027778. Epub 2012 Jun 27.

DOI:10.1107/S1600536812027778
PMID:22807791
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3393223/
Abstract

In the title compound, {[La(C(6)H(4)NO(2))(2)(H(2)O)(4)]Cl}(n), the La(III) atom lies on a twofold rotation axis and is eight-coordinated by four O atoms from four isonicotinate ligands and four water mol-ecules in a distorted square-anti-prismatic coodination environment. Adjacent La(III) atoms are bridged by two carboxyl-ate groups from two isonicotinate ligands, forming an extended chain along [001]. These chains are linked through O-H⋯N hydrogen bonds into a three-dimensional network with channels in which the chloride anions form O-H⋯Cl hydrogen bonds. Intra-chain O-H⋯O hydrogen bonds and π-π inter-actions [centroid-centroid distance = 3.908 (2) Å] are also observed.

摘要

在标题化合物{[La(C₆H₄NO₂)₂(H₂O)₄]Cl}ₙ中，La(III)原子位于二重旋转轴上，在扭曲的四方反棱柱配位环境中由来自四个异烟酸酯配体的四个O原子和四个水分子八配位。相邻的La(III)原子由来自两个异烟酸酯配体的两个羧酸根基团桥连，沿[001]形成一条延伸链。这些链通过O—H⋯N氢键连接成三维网络，其中存在通道，氯离子在通道中形成O—H⋯Cl氢键。还观察到链内O—H⋯O氢键和π-π相互作用[质心间距 = 3.908(2) Å]。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/238e/3393223/d21fef920025/e-68-0m972-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/238e/3393223/a4f34bb684a2/e-68-0m972-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/238e/3393223/d21fef920025/e-68-0m972-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/238e/3393223/a4f34bb684a2/e-68-0m972-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/238e/3393223/d21fef920025/e-68-0m972-fig2.jpg

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本文引用的文献

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2
Ligand-dependent ultrasonic-assistant self-assemblies and photophysical properties of lanthanide nicotinic/isonicotinic complexes.镧系烟碱/异烟碱配合物的配体依赖性超声辅助自组装及光物理性质
Inorg Chem. 2009 Apr 20;48(8):3800-7. doi: 10.1021/ic9000279.
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A short history of SHELX.SHELX简史。
Acta Crystallogr A. 2008 Jan;64(Pt 1):112-22. doi: 10.1107/S0108767307043930. Epub 2007 Dec 21.