GaO2 crystallizes in the orthorhombic Fddd space group. Ga(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form a mixture of distorted corner and edge-sharing GaO6 octahedra. The corner-sharing octahedral tilt angles range from 0-64°. There are two inequivalent O sites. In the first O site, O(1) is bonded to four equivalent Ga(1) atoms to form a mixture of corner and edge-sharing OGa4 tetrahedra. In the second O site, O(2) is bonded in a linear geometry to two equivalent Ga(1) atoms.
GaO2 crystallizes in the orthorhombic Fddd space group. Ga(1) is bonded to two equivalent O(2) and four equivalent O(1) atoms to form a mixture of distorted corner and edge-sharing GaO6 octahedra. The corner-sharing octahedral tilt angles range from 0-64°. Both Ga(1)-O(2) bond lengths are 1.93 Å. There are two shorter (2.02 Å) and two longer (2.09 Å) Ga(1)-O(1) bond lengths. There are two inequivalent O sites. In the first O site, O(1) is bonded to four equivalent Ga(1) atoms to form a mixture of corner and edge-sharing OGa4 tetrahedra. In the second O site, O(2) is bonded in a linear geometry to two equivalent Ga(1) atoms.