Tetrakis(μ-5-bromonicotinato)-κ3O,O′:O′;κ3O:O,O′;κ4O:O′-bis[diaqua(5-bromonicotinato-κ2O,O′)neodymium(III)] dihydrate

被引：0

作者：

Huang, Jing ^{[2
]}

Zhang, Jin ^{[1
]}

Chen, Hong-Ji ^{[1
]}

机构：

[1] Jinan Univ, Dept Mat Sci & Engn, Guangzhou 510632, Guangdong, Peoples R China

[2] Jinan Univ, Dept Chem, Guangzhou 510632, Guangdong, Peoples R China

来源：

ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE | 2011年 / 67卷

关键词：

LANTHANIDE COMPLEXES;

D O I：

10.1107/S1600536811023798

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

In the title compound, [Nd-2(C6H3BrNO2)(6)(H2O)(4)]center dot 2H(2)O, the Nd-III ion is coordinated by nine O atoms from one chelating 5-bromonicotinate ligand, four bridging 5-bromonicotinate ligands and two water molecules, exhibiting a distorted three-capped triangular-prismatic geometry. Two Nd-III ions are bridged by four carboxylate groups in bi- and tridentate modes, forming a centrosymmetric dinuclear unit, with an Nd center dot center dot center dot Nd distance of 4.0021 (5) angstrom, and intramolecular pi-pi interactions between the pyridine rings [centroid-centroid distance = 3.960 (2) angstrom]. Intermolecular pi-pi interactions [centroid-centroid distances = 3.820 (2) and 3.804 (2) angstrom] and O-H center dot center dot center dot N and O-H center dot center dot center dot O hydrogen bonds connect the dinuclear molecules into a three-dimensional supramolecular network.

引用

页码：M974 / U1427

页数：11

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