CuGaO2 is Enargite-like structured and crystallizes in the orthorhombic Pna2_1 space group. Cu(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form CuO4 tetrahedra that share corners with four equivalent Cu(1)O4 tetrahedra and corners with eight equivalent Ga(1)O4 tetrahedra. Ga(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form GaO4 tetrahedra that share corners with four equivalent Ga(1)O4 tetrahedra and corners with eight equivalent Cu(1)O4 tetrahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Cu(1) and two equivalent Ga(1) atoms to form corner-sharing OGa2Cu2 tetrahedra. In the second O site, O(2) is bonded to two equivalent Cu(1) and two equivalent Ga(1) atoms to form distorted corner-sharing OGa2Cu2 tetrahedra.
CuGaO2 is Enargite-like structured and crystallizes in the orthorhombic Pna2_1 space group. Cu(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form CuO4 tetrahedra that share corners with four equivalent Cu(1)O4 tetrahedra and corners with eight equivalent Ga(1)O4 tetrahedra. There is one shorter (2.08 Å) and one longer (2.16 Å) Cu(1)-O(1) bond length. There is one shorter (2.04 Å) and one longer (2.29 Å) Cu(1)-O(2) bond length. Ga(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form GaO4 tetrahedra that share corners with four equivalent Ga(1)O4 tetrahedra and corners with eight equivalent Cu(1)O4 tetrahedra. Both Ga(1)-O(1) bond lengths are 1.89 Å. There is one shorter (1.87 Å) and one longer (1.88 Å) Ga(1)-O(2) bond length. There are two inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Cu(1) and two equivalent Ga(1) atoms to form corner-sharing OGa2Cu2 tetrahedra. In the second O site, O(2) is bonded to two equivalent Cu(1) and two equivalent Ga(1) atoms to form distorted corner-sharing OGa2Cu2 tetrahedra.