SiO2 crystallizes in the cubic F4_132 space group. Si(1) is bonded in a 4-coordinate geometry to two equivalent O(1) and two equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to two equivalent Si(1) atoms. In the second O site, O(2) is bonded in a water-like geometry to two equivalent Si(1) atoms.
SiO2 crystallizes in the cubic F4_132 space group. Si(1) is bonded in a 4-coordinate geometry to two equivalent O(1) and two equivalent O(2) atoms. Both Si(1)-O(1) bond lengths are 1.75 Å. Both Si(1)-O(2) bond lengths are 1.82 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to two equivalent Si(1) atoms. In the second O site, O(2) is bonded in a water-like geometry to two equivalent Si(1) atoms.