Abstrakt: |
Summary Light pink-white microcrystalline ammonium and potassium fluoromonooxalatomanganates(II), A[MnF(C2O4)] (A = NH4 or K), and sodium fluoromonooxalatomanganate(II) dihydrate, Na[MnF(C2O4)] · 2H2O, have been synthesized by two different methods. Either KMnO4 is reduced in the presence of 40% HF and alkali metal oxalate, A2C2O4 (A = NH4, Na or K), or MnO(OH) in 40% HF reacts with A2C2O4. Characterisation was made by elemental analyses, determination of oxidation states, magnetic susceptibility measurements and infrared spectral studies. |