LiSiBiO4 crystallizes in the orthorhombic Pna2_1 space group. Li(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form distorted LiO4 tetrahedra that share corners with four equivalent Si(1)O4 tetrahedra. Si(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form SiO4 tetrahedra that share corners with four equivalent Li(1)O4 tetrahedra. Bi(1) is bonded in a 6-coordinate geometry to one O(2), one O(4), two equivalent O(1), and two equivalent O(3) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Li(1), one Si(1), and two equivalent Bi(1) atoms. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Li(1), one Si(1), and one Bi(1) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one Li(1), one Si(1), and two equivalent Bi(1) atoms. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Li(1), one Si(1), and one Bi(1) atom.
LiSiBiO4 crystallizes in the orthorhombic Pna2_1 space group. Li(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form distorted LiO4 tetrahedra that share corners with four equivalent Si(1)O4 tetrahedra. The Li(1)-O(1) bond length is 1.99 Å. The Li(1)-O(2) bond length is 2.04 Å. The Li(1)-O(3) bond length is 2.06 Å. The Li(1)-O(4) bond length is 1.96 Å. Si(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form SiO4 tetrahedra that share corners with four equivalent Li(1)O4 tetrahedra. The Si(1)-O(1) bond length is 1.67 Å. The Si(1)-O(2) bond length is 1.66 Å. The Si(1)-O(3) bond length is 1.66 Å. The Si(1)-O(4) bond length is 1.63 Å. Bi(1) is bonded in a 6-coordinate geometry to one O(2), one O(4), two equivalent O(1), and two equivalent O(3) atoms. The Bi(1)-O(2) bond length is 2.20 Å. The Bi(1)-O(4) bond length is 2.39 Å. There is one shorter (2.32 Å) and one longer (2.61 Å) Bi(1)-O(1) bond length. There is one shorter (2.41 Å) and one longer (2.76 Å) Bi(1)-O(3) bond length. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Li(1), one Si(1), and two equivalent Bi(1) atoms. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Li(1), one Si(1), and one Bi(1) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one Li(1), one Si(1), and two equivalent Bi(1) atoms. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one Li(1), one Si(1), and one Bi(1) atom.