AgCuIn2(TeSe)2 is beta beryllia-derived structured and crystallizes in the monoclinic C2 space group. Ag(1) is bonded to two equivalent Te(1) and two equivalent Se(1) atoms to form AgTe2Se2 tetrahedra that share corners with four equivalent Cu(1)Te2Se2 tetrahedra, corners with four equivalent In(1)Te2Se2 tetrahedra, and corners with four equivalent In(2)Te2Se2 tetrahedra. Cu(1) is bonded to two equivalent Te(1) and two equivalent Se(1) atoms to form CuTe2Se2 tetrahedra that share corners with four equivalent Ag(1)Te2Se2 tetrahedra, corners with four equivalent In(1)Te2Se2 tetrahedra, and corners with four equivalent In(2)Te2Se2 tetrahedra. There are two inequivalent In sites. In the first In site, In(1) is bonded to two equivalent Te(1) and two equivalent Se(1) atoms to form InTe2Se2 tetrahedra that share corners with four equivalent Ag(1)Te2Se2 tetrahedra, corners with four equivalent Cu(1)Te2Se2 tetrahedra, and corners with four equivalent In(2)Te2Se2 tetrahedra. In the second In site, In(2) is bonded to two equivalent Te(1) and two equivalent Se(1) atoms to form InTe2Se2 tetrahedra that share corners with four equivalent Ag(1)Te2Se2 tetrahedra, corners with four equivalent Cu(1)Te2Se2 tetrahedra, and corners with four equivalent In(1)Te2Se2 tetrahedra. Te(1) is bonded to one Ag(1), one Cu(1), one In(1), and one In(2) atom to form TeIn2CuAg tetrahedra that share corners with four equivalent Te(1)In2CuAg tetrahedra and corners with eight equivalent Se(1)In2CuAg tetrahedra. Se(1) is bonded to one Ag(1), one Cu(1), one In(1), and one In(2) atom to form SeIn2CuAg tetrahedra that share corners with four equivalent Se(1)In2CuAg tetrahedra and corners with eight equivalent Te(1)In2CuAg tetrahedra.
AgCuIn2(TeSe)2 is beta beryllia-derived structured and crystallizes in the monoclinic C2 space group. Ag(1) is bonded to two equivalent Te(1) and two equivalent Se(1) atoms to form AgTe2Se2 tetrahedra that share corners with four equivalent Cu(1)Te2Se2 tetrahedra, corners with four equivalent In(1)Te2Se2 tetrahedra, and corners with four equivalent In(2)Te2Se2 tetrahedra. Both Ag(1)-Te(1) bond lengths are 2.79 Å. Both Ag(1)-Se(1) bond lengths are 2.68 Å. Cu(1) is bonded to two equivalent Te(1) and two equivalent Se(1) atoms to form CuTe2Se2 tetrahedra that share corners with four equivalent Ag(1)Te2Se2 tetrahedra, corners with four equivalent In(1)Te2Se2 tetrahedra, and corners with four equivalent In(2)Te2Se2 tetrahedra. Both Cu(1)-Te(1) bond lengths are 2.60 Å. Both Cu(1)-Se(1) bond lengths are 2.46 Å. There are two inequivalent In sites. In the first In site, In(1) is bonded to two equivalent Te(1) and two equivalent Se(1) atoms to form InTe2Se2 tetrahedra that share corners with four equivalent Ag(1)Te2Se2 tetrahedra, corners with four equivalent Cu(1)Te2Se2 tetrahedra, and corners with four equivalent In(2)Te2Se2 tetrahedra. Both In(1)-Te(1) bond lengths are 2.82 Å. Both In(1)-Se(1) bond lengths are 2.68 Å. In the second In site, In(2) is bonded to two equivalent Te(1) and two equivalent Se(1) atoms to form InTe2Se2 tetrahedra that share corners with four equivalent Ag(1)Te2Se2 tetrahedra, corners with four equivalent Cu(1)Te2Se2 tetrahedra, and corners with four equivalent In(1)Te2Se2 tetrahedra. Both In(2)-Te(1) bond lengths are 2.83 Å. Both In(2)-Se(1) bond lengths are 2.70 Å. Te(1) is bonded to one Ag(1), one Cu(1), one In(1), and one In(2) atom to form TeIn2CuAg tetrahedra that share corners with four equivalent Te(1)In2CuAg tetrahedra and corners with eight equivalent Se(1)In2CuAg tetrahedra. Se(1) is bonded to one Ag(1), one Cu(1), one In(1), and one In(2) atom to form SeIn2CuAg tetrahedra that share corners with four equivalent Se(1)In2CuAg tetrahedra and corners with eight equivalent Te(1)In2CuAg tetrahedra.