Synthesis, structure, and magnetic property of Co(II)-based metal–organic framework with 4,4′-oxy bis(benzoate) ligand
Synthesis, structure, and magnetic property of Co(II)-based metal–organic framework with 4,4′-oxy bis(benzoate) ligand
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DOI：
10.1080/00958972.2012.658779
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发表时间：
2012-02
影响因子：
1.9
通讯作者：
Genhua Wu;Yanan Han;Dayu Wu;Wei Huang;Xiaohong Zhou
中科院分区：
文献类型：
--
作者：
Genhua Wu;Yanan Han;Dayu Wu;Wei Huang;Xiaohong Zhou
通过OBA与Co（OAc）2 ·4 H2O的反应，合成了一种二维配位聚合物[Co（OBA）2]∞（OBA = 4，4 ′-氧代双苯甲酸酯），其中OBA配体以末端方式桥接钴，形成具有强氢键相互作用的二维层状结构.磁性数据表明，Co（II）中心之间的磁耦合可以忽略不计，Co（II）在八面体环境中的单离子磁性行为在低温下由S = 3/2态转变为有效的S ′ = 1/2基态.
A 2-D coordination polymer, [Co(OBA)2]∞ (OBA = 4,4′-oxy bis(benzoate)), where OBA ligands bridge cobalt in a terminal fashion to build up a 2-D layer structure with strong hydrogen-bonding interaction was isolated and structurally characterized from the reaction of OBA with Co(OAc)2 · 4H2O. Magnetic data indicate the Co(II) centers in 1 are negligibly magnetically coupled to each other and the single-ion magnetic behavior of Co(II) in octahedral environment is dominated at low temperature to give an effective S ′ = 1/2 ground state from S = 3/2 state due to spin–orbit coupling.