CuGaI4 crystallizes in the tetragonal I-4 space group. Cu(1) is bonded to four equivalent I(1) atoms to form CuI4 tetrahedra that share corners with four equivalent Ga(1)I4 tetrahedra. Ga(1) is bonded to four equivalent I(1) atoms to form GaI4 tetrahedra that share corners with four equivalent Cu(1)I4 tetrahedra. I(1) is bonded in a water-like geometry to one Cu(1) and one Ga(1) atom.
CuGaI4 crystallizes in the tetragonal I-4 space group. Cu(1) is bonded to four equivalent I(1) atoms to form CuI4 tetrahedra that share corners with four equivalent Ga(1)I4 tetrahedra. All Cu(1)-I(1) bond lengths are 2.61 Å. Ga(1) is bonded to four equivalent I(1) atoms to form GaI4 tetrahedra that share corners with four equivalent Cu(1)I4 tetrahedra. All Ga(1)-I(1) bond lengths are 2.58 Å. I(1) is bonded in a water-like geometry to one Cu(1) and one Ga(1) atom.