Preparation and crystal structure of (NH4)8Ni(HPO4)2(PO4)2Mo10O30.12H2O

Crystal structure: P1, a=15.541, b=10.196, c=9.360A, α=110.46, β=97.51, γ=94.94°, Z=1, R=0.028 for 7222 reflections. The Ni ions are on symmetry centers and are octahedrally coordinated by four water molecules and two oxygen atoms from tertiary phosphate groups. The molybdenum atoms are octahedrally coordinated. The octahedra build two rings, each containing five octahedra which share edges or apices with each other or share apices with the phosphate groups