Structure and Magnetic Field-Induced Transition in a One-Dimensional Hybrid Inorganic−Organic Chain System, Co2(4,4′-bpy)(tfhba)2·4,4′-bpy (4,4′-bpy
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- 作者：Zeric Hulvey ; Brent C. Melot ; Anthony K. Cheetham
- 刊名：Inorganic Chemistry
- 出版年：2010
- 出版时间：May 17, 2010
- 年：2010
- 卷：49
- 期：10
- 页码：4594-4598
- 全文大小：818K
- 年卷期：v.49,no.10(May 17, 2010)
- ISSN：1520-510X
文摘
Two isostructural hybrid inorganic−organic frameworks, M2(4,4′-bpy)(tfhba)2·4,4′-bpy, (M = Co (1), Zn (2); 4,4′-bpy = 4,4′-bipyridine; tfhba = 2,3,5,6-tetrafluoro-4-hydroxybenzoate) have been synthesized and their structures elucidated using single crystal X-ray diffraction. These materials are the first hybrid structures synthesized using the tfhba ligand. They contain a one-dimensional chain of corner-sharing MO4N trigonal bipyramids that has not been observed to date for Co2+ units. The magnetic properties of 1 have been investigated and indicate ferromagnetic ordering along the chains, with weak antiferromagnetic interactions between them. Overall the system is antiferromagnetic with a Nel temperature of 3 K, but undergoes a field-induced magnetic phase transition at 3 kOe.