InGa(AgSe2)2 is Stannite-like structured and crystallizes in the tetragonal I-4 space group. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to four equivalent Se(1) atoms to form AgSe4 tetrahedra that share corners with four equivalent Ag(2)Se4 tetrahedra, corners with four equivalent In(1)Se4 tetrahedra, and corners with four equivalent Ga(1)Se4 tetrahedra. In the second Ag site, Ag(2) is bonded to four equivalent Se(1) atoms to form AgSe4 tetrahedra that share corners with four equivalent Ag(1)Se4 tetrahedra, corners with four equivalent In(1)Se4 tetrahedra, and corners with four equivalent Ga(1)Se4 tetrahedra. In(1) is bonded to four equivalent Se(1) atoms to form InSe4 tetrahedra that share corners with four equivalent Ag(1)Se4 tetrahedra, corners with four equivalent Ag(2)Se4 tetrahedra, and corners with four equivalent Ga(1)Se4 tetrahedra. Ga(1) is bonded to four equivalent Se(1) atoms to form GaSe4 tetrahedra that share corners with four equivalent Ag(1)Se4 tetrahedra, corners with four equivalent Ag(2)Se4 tetrahedra, and corners with four equivalent In(1)Se4 tetrahedra. Se(1) is bonded to one Ag(1), one Ag(2), one In(1), and one Ga(1) atom to form corner-sharing SeInGaAg2 tetrahedra.
InGa(AgSe2)2 is Stannite-like structured and crystallizes in the tetragonal I-4 space group. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded to four equivalent Se(1) atoms to form AgSe4 tetrahedra that share corners with four equivalent Ag(2)Se4 tetrahedra, corners with four equivalent In(1)Se4 tetrahedra, and corners with four equivalent Ga(1)Se4 tetrahedra. All Ag(1)-Se(1) bond lengths are 2.68 Å. In the second Ag site, Ag(2) is bonded to four equivalent Se(1) atoms to form AgSe4 tetrahedra that share corners with four equivalent Ag(1)Se4 tetrahedra, corners with four equivalent In(1)Se4 tetrahedra, and corners with four equivalent Ga(1)Se4 tetrahedra. All Ag(2)-Se(1) bond lengths are 2.67 Å. In(1) is bonded to four equivalent Se(1) atoms to form InSe4 tetrahedra that share corners with four equivalent Ag(1)Se4 tetrahedra, corners with four equivalent Ag(2)Se4 tetrahedra, and corners with four equivalent Ga(1)Se4 tetrahedra. All In(1)-Se(1) bond lengths are 2.65 Å. Ga(1) is bonded to four equivalent Se(1) atoms to form GaSe4 tetrahedra that share corners with four equivalent Ag(1)Se4 tetrahedra, corners with four equivalent Ag(2)Se4 tetrahedra, and corners with four equivalent In(1)Se4 tetrahedra. All Ga(1)-Se(1) bond lengths are 2.46 Å. Se(1) is bonded to one Ag(1), one Ag(2), one In(1), and one Ga(1) atom to form corner-sharing SeInGaAg2 tetrahedra.