Ferromagnetic interactions through double hydrogen bonding bridges in manganese(II) coordination polymers

被引:13
|
作者
Wang, Kun [1 ]
Wang, Yan-Qin [1 ]
Zhang, Xiu-Mei [1 ]
Gao, En-Qing [1 ]
机构
[1] E China Normal Univ, Dept Chem, Shanghai Key Lab Green Chem & Chem Proc, Shanghai 200062, Peoples R China
基金
美国国家科学基金会; 高等学校博士学科点专项科研基金;
关键词
DINUCLEAR COPPER(II) COMPLEXES; SINGLE-MOLECULE MAGNET; CRYSTAL-STRUCTURES; BONDED BRIDGES; CIS-HYDROXOAQUACHROMIUM(III) COMPLEXES; SPECTROSCOPIC CHARACTERIZATION; STRUCTURAL-CHARACTERIZATION; POLYNUCLEAR COMPLEXES; CHAIN MAGNET; SYSTEMS;
D O I
10.1039/c2dt32826g
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Three isostructural Mn(II) compounds with a zwitterionic dicarboxylate ligand and different pseudo-halides were synthesized, and then structurally and magnetically characterized. They are formulated as [Mn(L)(X)(2)(H2O)(2)](n) [X = N-3(-) (1), NCO- (2), NCS- (3), L = 1,4-bis(4-carboxylato-1-pyridinium)butane]. In these compounds, adjacent Mn(II) ions are connected into coordination chains by long zwitterionic linkers and into hydrogen-bonded chains by short double O-H center dot center dot center dot N bridges involving coordinated water and pseudohalide ligands. Magnetic studies revealed for the first time that the double hydrogen bridges induce ferromagnetic coupling between the Mn(II) ions.
引用
收藏
页码:4533 / 4538
页数:6
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