A stair step layer structure encapsulating interlayer K+ cations: hydrothermal synthesis, crystal structure, and magnetic properties of the mixed-valence vanadium phosphate K2((V(IV)O)2V(III)(PO4)2(H2PO4)(H2O2)2)

The process of hydrothermal preparation is employed in the synthesis of a novel vanadium phosphate with varying valences. Solitary crystal X-ray diffraction and magnetic susceptibility calculations are used to determine its properties. The geometry is seen as being elongated and derived from a VOPO4-like layer with the P-OH group, and V3+ octahedra accepted the ends of the elongated structure. Two varying areas for the K+ cations are yielded due to the piling of the layers, and are observed inside the layers and between two layers.