NH4MSO4F (M = Mn, Fe, Co, Ni): A series of thermally stable transition metal fluorosulfates with KTP-type structure

作者：Ge, Gen-wu^*; Luo, Wen; Zhang, Xin-lei; Du, Xiao-di; Liang, Li-li^*

来源：Polyhedron, 2018, 152: 55-60.

DOI：10.1016/j.poly.2018.06.017

• Metal fluorosufates
• Solvothermal synthesis
• Crystal structures
• Thermal stability
• Magnetic property

Four new transition metal fluorosulfates NH4MSO4F (M approximate to Mn, 1; Fe, 2; Co, 3; Ni, 4) were solvothermally synthesized in the solvent of N,N-dimethylacetamide (DMA) with HF as the mineralization agent. The X-ray single crystal diffraction analyses revealed that 1-4 are isomorphous, and possess a three-dimensional framework with the same structural topology as the known nonlinear optical material KTiOPO4 (KTP). The four compounds were constructed from MO4F2 octahedra and SO4 tetrahedra to form two kinds of intersecting 6-membered ring channels along the a and c axes, respectively. Within the channels locate the NH4+ cations from the decomposition of DMA molecules. All the compounds are thermally stable up to 330 degrees C. The magnetic studies of 1-4 revealed the antiferromagnetic interaction behaviors in the range of 1.8-300 K.

• 出版日期2018-9-15
• 单位周口师范学院; 蚌埠医学院