LiNi(AsO4) is Spinel-derived structured and crystallizes in the orthorhombic Imma space group. Li(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form LiO6 octahedra that share corners with six equivalent As(1)O4 tetrahedra, edges with two equivalent Li(1)O6 octahedra, and edges with four equivalent Ni(1)O6 octahedra. Ni(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form NiO6 octahedra that share corners with six equivalent As(1)O4 tetrahedra, edges with two equivalent Ni(1)O6 octahedra, and edges with four equivalent Li(1)O6 octahedra. As(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form AsO4 tetrahedra that share corners with six equivalent Li(1)O6 octahedra and corners with six equivalent Ni(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-55°. There are two inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Li(1), two equivalent Ni(1), and one As(1) atom. In the second O site, O(2) is bonded in a rectangular see-saw-like geometry to two equivalent Li(1), one Ni(1), and one As(1) atom.
LiNi(AsO4) is Spinel-derived structured and crystallizes in the orthorhombic Imma space group. Li(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form LiO6 octahedra that share corners with six equivalent As(1)O4 tetrahedra, edges with two equivalent Li(1)O6 octahedra, and edges with four equivalent Ni(1)O6 octahedra. Both Li(1)-O(1) bond lengths are 2.09 Å. All Li(1)-O(2) bond lengths are 2.11 Å. Ni(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form NiO6 octahedra that share corners with six equivalent As(1)O4 tetrahedra, edges with two equivalent Ni(1)O6 octahedra, and edges with four equivalent Li(1)O6 octahedra. Both Ni(1)-O(2) bond lengths are 2.08 Å. All Ni(1)-O(1) bond lengths are 2.09 Å. As(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form AsO4 tetrahedra that share corners with six equivalent Li(1)O6 octahedra and corners with six equivalent Ni(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-55°. Both As(1)-O(1) bond lengths are 1.75 Å. Both As(1)-O(2) bond lengths are 1.72 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a rectangular see-saw-like geometry to one Li(1), two equivalent Ni(1), and one As(1) atom. In the second O site, O(2) is bonded in a rectangular see-saw-like geometry to two equivalent Li(1), one Ni(1), and one As(1) atom.