SiO2 is Low Tridymite-like structured and crystallizes in the monoclinic P2_1/c space group. Si(1,2) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form corner-sharing SiO4 tetrahedra. There are four inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to two equivalent Si(1,2) atoms. In the second O site, O(2) is bonded in a bent 150 degrees geometry to two equivalent Si(1,2) atoms. In the third O site, O(3) is bonded in a bent 150 degrees geometry to two equivalent Si(1,2) atoms. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to two equivalent Si(1,2) atoms.
SiO2 is Low Tridymite-like structured and crystallizes in the monoclinic P2_1/c space group. Si(1,2) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form corner-sharing SiO4 tetrahedra. The Si(1,2)-O(1) bond length is 1.61 Å. The Si(1,2)-O(2) bond length is 1.61 Å. The Si(1,2)-O(3) bond length is 1.61 Å. The Si(1,2)-O(4) bond length is 1.61 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to two equivalent Si(1,2) atoms. In the second O site, O(2) is bonded in a bent 150 degrees geometry to two equivalent Si(1,2) atoms. In the third O site, O(3) is bonded in a bent 150 degrees geometry to two equivalent Si(1,2) atoms. In the fourth O site, O(4) is bonded in a bent 150 degrees geometry to two equivalent Si(1,2) atoms.