AgGaS2 is Chalcopyrite structured and crystallizes in the monoclinic Cc space group. Ag(1) is bonded to two equivalent S(1) and two equivalent S(2) atoms to form AgS4 tetrahedra that share corners with four equivalent Ag(1)S4 tetrahedra and corners with eight equivalent Ga(1)S4 tetrahedra. Ga(1) is bonded to two equivalent S(1) and two equivalent S(2) atoms to form GaS4 tetrahedra that share corners with four equivalent Ga(1)S4 tetrahedra and corners with eight equivalent Ag(1)S4 tetrahedra. There are two inequivalent S sites. In the first S site, S(1) is bonded to two equivalent Ag(1) and two equivalent Ga(1) atoms to form corner-sharing SGa2Ag2 tetrahedra. In the second S site, S(2) is bonded to two equivalent Ag(1) and two equivalent Ga(1) atoms to form corner-sharing SGa2Ag2 tetrahedra.
AgGaS2 is Chalcopyrite structured and crystallizes in the monoclinic Cc space group. Ag(1) is bonded to two equivalent S(1) and two equivalent S(2) atoms to form AgS4 tetrahedra that share corners with four equivalent Ag(1)S4 tetrahedra and corners with eight equivalent Ga(1)S4 tetrahedra. Both Ag(1)-S(1) bond lengths are 2.55 Å. There is one shorter (2.55 Å) and one longer (2.56 Å) Ag(1)-S(2) bond length. Ga(1) is bonded to two equivalent S(1) and two equivalent S(2) atoms to form GaS4 tetrahedra that share corners with four equivalent Ga(1)S4 tetrahedra and corners with eight equivalent Ag(1)S4 tetrahedra. Both Ga(1)-S(1) bond lengths are 2.29 Å. Both Ga(1)-S(2) bond lengths are 2.29 Å. There are two inequivalent S sites. In the first S site, S(1) is bonded to two equivalent Ag(1) and two equivalent Ga(1) atoms to form corner-sharing SGa2Ag2 tetrahedra. In the second S site, S(2) is bonded to two equivalent Ag(1) and two equivalent Ga(1) atoms to form corner-sharing SGa2Ag2 tetrahedra.