Cobalt diphosphonate with a new double chain structure exhibiting field-induced magnetic transition

被引:33
作者
Zhang, Zai-Chao
Gao, Song
Zheng, Li Min [1 ]
机构
[1] Nanjing Univ, Sch Chem & Chem Engn, Inst Coordinat Chem, State Key Lab Coordinat Chem, Nanjing 210093, Peoples R China
[2] Peking Univ, Coll Chem & Mol Engn, State Key Lab Rare Earth Mat & Appl, Beijing 100871, Peoples R China
关键词
D O I
10.1039/b709474d
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
A cobalt diphosphonate Co(H2O){C5H5N-CH2CH(OH)(PO3)(PO3H)} (1) has been synthesized under hydrothermal conditions. It shows a novel type of double chain structure in which one of the two CPO3 terminus caps on top of the {Co-2(mu-O)(2)} dimer while the other connects the adjacent {Co-2(mu-O)(2)} dimers into a chain. The magnetization measurements reveal that dominant antiferromagnetic interactions are mediated between the magnetic centers and the compound experiences a field-induced magnetic transition at low temperature with H-c of ca. 15 kOe at 1.8 K.
引用
收藏
页码:4681 / 4684
页数:4
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