A novel alkaline earth strontium(II) coordination polymer: poly[hexaaquatetrakis(μ5-pyridine-2,6-dicarboxylato)bis(μ4-pyridine-2,6-dicarboxylato)(μ7-sulfato)heptastrontium(II)]

被引：3
作者：
Zhang, Wei [1 ]
Qi, Shu-Guang [2 ]
Feng, Yu-Quan [2 ]
机构：
[1] Nanyang Med Coll, Nanyang 473061, Peoples R China
[2] Nanyang Normal Univ, Analyt & Testing Ctr, Nanyang 473061, Peoples R China
来源：
ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY | 2014年 / 70卷
关键词：
crystal structure; heptanuclear strontium(II); coordination polymer; ionothermal synthesis; sulfate ligand; hydrogen bonding; METAL;
D O I：
10.1107/S205322961401002X
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The title compound, [Sr-7(C7H3NO4)(6)(SO4)(H2O)(6)](n), has been synthesized by an ionothermal method using the ionic liquid 1-ethyl-3-methylimidazolium ([Emim] Br) as solvent, and characterized by elemental analysis, energy-dispersive X-ray spectroscopy, IR and single-crystal X-ray diffraction. The structure of the compound can be viewed as a three-dimensional coordination polymer composed of Sr2+ cations, pyridine-2,6-dicarboxylate anions, sulfate anions and water molecules. The compound not only exhibits a three-dimensional structure with a unique coordination mode of the sulfate anion, but also features the first example of a heptanuclear strontium(II) coordination polymer. The structure is further stabilized by O-H center dot center dot center dot O hydrogen bonds and pi-pi stacking interactions.
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页码：584 / +
页数：23
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