LiSiCSbO7 crystallizes in the monoclinic P2_1 space group. Li(1) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(3), one O(5), and one O(6) atom. Si(1) is bonded to one O(4), one O(5), one O(6), and one O(7) atom to form SiO4 tetrahedra that share corners with four equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-48°. C(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(3) atom. Sb(1) is bonded to one O(2), one O(3), one O(4), one O(5), one O(6), and one O(7) atom to form SbO6 octahedra that share corners with four equivalent Si(1)O4 tetrahedra. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Li(1) and one C(1) atom. In the second O site, O(2) is bonded in a distorted T-shaped geometry to one Li(1), one C(1), and one Sb(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Li(1), one C(1), and one Sb(1) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Si(1) and one Sb(1) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Li(1), one Si(1), and one Sb(1) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Li(1), one Si(1), and one Sb(1) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one Si(1) and one Sb(1) atom.
LiSiCSbO7 crystallizes in the monoclinic P2_1 space group. Li(1) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(3), one O(5), and one O(6) atom. The Li(1)-O(1) bond length is 1.89 Å. The Li(1)-O(2) bond length is 2.31 Å. The Li(1)-O(3) bond length is 2.20 Å. The Li(1)-O(5) bond length is 2.35 Å. The Li(1)-O(6) bond length is 2.52 Å. Si(1) is bonded to one O(4), one O(5), one O(6), and one O(7) atom to form SiO4 tetrahedra that share corners with four equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-48°. The Si(1)-O(4) bond length is 1.63 Å. The Si(1)-O(5) bond length is 1.63 Å. The Si(1)-O(6) bond length is 1.64 Å. The Si(1)-O(7) bond length is 1.65 Å. C(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(3) atom. The C(1)-O(1) bond length is 1.23 Å. The C(1)-O(2) bond length is 1.35 Å. The C(1)-O(3) bond length is 1.36 Å. Sb(1) is bonded to one O(2), one O(3), one O(4), one O(5), one O(6), and one O(7) atom to form SbO6 octahedra that share corners with four equivalent Si(1)O4 tetrahedra. The Sb(1)-O(2) bond length is 2.07 Å. The Sb(1)-O(3) bond length is 2.09 Å. The Sb(1)-O(4) bond length is 1.95 Å. The Sb(1)-O(5) bond length is 1.99 Å. The Sb(1)-O(6) bond length is 1.96 Å. The Sb(1)-O(7) bond length is 1.96 Å. There are seven inequivalent O sites. In the first O site, O(1) is bonded in a bent 120 degrees geometry to one Li(1) and one C(1) atom. In the second O site, O(2) is bonded in a distorted T-shaped geometry to one Li(1), one C(1), and one Sb(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Li(1), one C(1), and one Sb(1) atom. In the fourth O site, O(4) is bonded in a distorted bent 150 degrees geometry to one Si(1) and one Sb(1) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Li(1), one Si(1), and one Sb(1) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Li(1), one Si(1), and one Sb(1) atom. In the seventh O site, O(7) is bonded in a distorted bent 120 degrees geometry to one Si(1) and one Sb(1) atom.