Synthesis and magnetism of chromium(II) methylphosphonate, Cr-II(MePO(3))center dot H2O: A new weak ferromagnet

被引:16
作者
Bellitto, C [1 ]
Federici, F [1 ]
Ibrahim, SA [1 ]
机构
[1] UNIV ASSIUT, FAC SCI, DEPT CHEM, ASSIUT, EGYPT
关键词
D O I
10.1039/cc9960000759
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A new chromium(II) phosphonate, Cr-II(MePO(3)). H2O, is prepared and characterised; magnetic measurements in the temperature range 100-300 K show a typical Curie-Weiss behaviour with a Curie constant of 2.90(5) emu K mol(-1) and a negative Weiss constant theta of -226(6) K; the thermal variation of the magnetic susceptibility below 60 K depends upon the cooling mode (z.f.c. = zero-field cooled and f.c. = field cooled); the compound is a canted antiferromagnet with the ordering temperature T-N at 35.8(3) K.
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页码:759 / 760
页数:2
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