A new member of ferrous sulfates, FeSO4 center dot 2H(2)O with PtS topology showing spin-canted long-range antiferromagnetic ordering

作者：Zhao Long; Liu Wei^*; Cao Lixin; Su Ge; Gao Rongjie; Yang Hongzhan

来源：Journal of Solid State Chemistry, 2015, 231: 58-63.

DOI：10.1016/j.jssc.2015.07.036

• Ferrous sulfate
• Crystal structure
• Structural evolution
• Magnetism

A sanderite ferrous sulfate FeSO4 center dot 2H(2)O has been synthesized by the hydro/solvothermal method. Its crystal structure (Pccn, a=6.3160 angstrom, b=7.7550 angstrom, c=8.9880 angstrom, V=440.2 angstrom(3), Z=4) can be regarded as the condensation of alternately corner-shared FeO4(H2O)(2) octahedra and SO4 tetrahedra with a similar topology of PtS. By structural comparison with the known hydrated ferrous sulfates, the structural relation among them has been noted and discussed in detail. A variable temperature magnetic study shows a spin-canted long-range antiferromagnetic ordering in the low temperature regime, which might result from a possible phase transition during the cooling from the high temperature.

• 出版日期2015-11
• 单位中国海洋大学