One-dimensional metal phosphonates based on 6-phosphononicotinic acid: A structural and magnetic study

被引：6

作者：

Wang PengFei ^{[1
]}

Duan Yan ^{[1
]}

Zheng LiMin ^{[1
]}

机构：

[1] Nanjing Univ, State Key Lab Coordinat Chem, Inst Coordinat Chem, Sch Chem & Chem Engn, Nanjing 210093, Peoples R China

来源：

SCIENCE CHINA-CHEMISTRY | 2010年 / 53卷 / 10期

基金：

中国国家自然科学基金;

关键词：

carboxylate-phosphonate; coordination polymer; magnetic property; metamagnetism; LANTHANIDE PHOSPHONATES; CLUSTERS; SPIN;

D O I：

10.1007/s11426-010-4097-6

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The reactions of 6-phosphononicotinic acid (pnaH(3)) and metal salts result in three new compounds, namely, M(pnaH)-(H2O)(3)center dot H2O [M = Co(II) (1), Ni(II) (2), Zn(II) (3)]. These compounds are isostructural and contain 2] helical chains made up of corner-sharing {MO5N} octahedra and {PO3C} tetrahedra. The chains are further connected by extensive hydrogen bonds to form a three-dimensional supramolecular structure. Magnetic studies reveal that dominant antiferromagnetic interactions are mediated in both 1 and 2. Interestingly the dehydrated compound 1 shows metamagnetic behavior at low temperature.

引用

页码：2112 / 2117

页数：6

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