Li1MnSiO4 is Hausmannite-derived structured and crystallizes in the orthorhombic Imma space group. Li(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form LiO4 tetrahedra that share corners with six equivalent Mn(1)O6 octahedra and corners with six equivalent Si(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 49-69°. Mn(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form distorted MnO6 octahedra that share corners with six equivalent Li(1)O4 tetrahedra, edges with two equivalent Mn(1)O6 octahedra, and edges with four equivalent Si(1)O6 octahedra. Si(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form SiO6 octahedra that share corners with six equivalent Li(1)O4 tetrahedra, edges with two equivalent Si(1)O6 octahedra, and edges with four equivalent Mn(1)O6 octahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted rectangular see-saw-like geometry to one Li(1), one Mn(1), and two equivalent Si(1) atoms. In the second O site, O(2) is bonded to one Li(1), two equivalent Mn(1), and one Si(1) atom to form a mixture of corner and edge-sharing OLiMn2Si tetrahedra.
Li1MnSiO4 is Hausmannite-derived structured and crystallizes in the orthorhombic Imma space group. Li(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form LiO4 tetrahedra that share corners with six equivalent Mn(1)O6 octahedra and corners with six equivalent Si(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 49-69°. Both Li(1)-O(1) bond lengths are 2.02 Å. Both Li(1)-O(2) bond lengths are 1.97 Å. Mn(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form distorted MnO6 octahedra that share corners with six equivalent Li(1)O4 tetrahedra, edges with two equivalent Mn(1)O6 octahedra, and edges with four equivalent Si(1)O6 octahedra. Both Mn(1)-O(1) bond lengths are 2.21 Å. All Mn(1)-O(2) bond lengths are 1.96 Å. Si(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form SiO6 octahedra that share corners with six equivalent Li(1)O4 tetrahedra, edges with two equivalent Si(1)O6 octahedra, and edges with four equivalent Mn(1)O6 octahedra. Both Si(1)-O(2) bond lengths are 1.85 Å. All Si(1)-O(1) bond lengths are 1.82 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted rectangular see-saw-like geometry to one Li(1), one Mn(1), and two equivalent Si(1) atoms. In the second O site, O(2) is bonded to one Li(1), two equivalent Mn(1), and one Si(1) atom to form a mixture of corner and edge-sharing OLiMn2Si tetrahedra.