AgIn2Se4 crystallizes in the tetragonal I-4 space group. Ag(1) is bonded to four equivalent Se(1) atoms to form AgSe4 tetrahedra that share corners with four equivalent In(1)Se4 tetrahedra and corners with four equivalent In(2)Se4 tetrahedra. There are two inequivalent In sites. In the first In site, In(1) is bonded to four equivalent Se(1) atoms to form InSe4 tetrahedra that share corners with four equivalent Ag(1)Se4 tetrahedra and corners with four equivalent In(2)Se4 tetrahedra. In the second In site, In(2) is bonded to four equivalent Se(1) atoms to form InSe4 tetrahedra that share corners with four equivalent Ag(1)Se4 tetrahedra and corners with four equivalent In(1)Se4 tetrahedra. Se(1) is bonded in a trigonal non-coplanar geometry to one Ag(1), one In(1), and one In(2) atom.
AgIn2Se4 crystallizes in the tetragonal I-4 space group. Ag(1) is bonded to four equivalent Se(1) atoms to form AgSe4 tetrahedra that share corners with four equivalent In(1)Se4 tetrahedra and corners with four equivalent In(2)Se4 tetrahedra. All Ag(1)-Se(1) bond lengths are 2.64 Å. There are two inequivalent In sites. In the first In site, In(1) is bonded to four equivalent Se(1) atoms to form InSe4 tetrahedra that share corners with four equivalent Ag(1)Se4 tetrahedra and corners with four equivalent In(2)Se4 tetrahedra. All In(1)-Se(1) bond lengths are 2.64 Å. In the second In site, In(2) is bonded to four equivalent Se(1) atoms to form InSe4 tetrahedra that share corners with four equivalent Ag(1)Se4 tetrahedra and corners with four equivalent In(1)Se4 tetrahedra. All In(2)-Se(1) bond lengths are 2.64 Å. Se(1) is bonded in a trigonal non-coplanar geometry to one Ag(1), one In(1), and one In(2) atom.