MAGNETIC EXCHANGE INTERACTIONS IN THE HETEROPOLY COMPLEXES [M4(H2O)2(PW9O34)2]10- [M = CO(II) AND CU(II)]

被引:23
作者
GOMEZGARCIA, CJ
CASANPASTOR, N
CORONADO, E
BAKER, LCW
POURROY, G
机构
[1] GEORGETOWN UNIV,DEPT CHEM,WASHINGTON,DC 20057
[2] EHICS,DEPT MAT SCI,STRASBOURG,FRANCE
关键词
D O I
10.1063/1.346111
中图分类号
O59 [应用物理学];
学科分类号
摘要
The magnetic properties of the heteropolyanions [M4(H 2O)2(PW9O34) 2]10- [M=Co(II) and Cu(II)] down to 4 K are reported. Their individual heteropoly molecules contain a rhomblike arrangement formed by four coplanar MO6 octahedra sharing edges. The magnetic properties support an intramolecular ferromagnetic exchange in the Co(II) tetramer, and antiferromagnetic exchange in the Cu(II) tetramer. These behaviors are discussed assuming anisotropic exchange in the Co(II) compound, and Heisenberg exchange in the Cu(II) compound.
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页码:5995 / 5997
页数:3
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