In2AsSe is Chalcopyrite-like structured and crystallizes in the tetragonal P-4m2 space group. In(1) is bonded to two equivalent As(1) and two equivalent Se(1) atoms to form corner-sharing InAs2Se2 tetrahedra. As(1) is bonded to four equivalent In(1) atoms to form AsIn4 tetrahedra that share corners with four equivalent As(1)In4 tetrahedra and corners with eight equivalent Se(1)In4 tetrahedra. Se(1) is bonded to four equivalent In(1) atoms to form SeIn4 tetrahedra that share corners with four equivalent Se(1)In4 tetrahedra and corners with eight equivalent As(1)In4 tetrahedra.
In2AsSe is Chalcopyrite-like structured and crystallizes in the tetragonal P-4m2 space group. In(1) is bonded to two equivalent As(1) and two equivalent Se(1) atoms to form corner-sharing InAs2Se2 tetrahedra. Both In(1)-As(1) bond lengths are 2.74 Å. Both In(1)-Se(1) bond lengths are 2.81 Å. As(1) is bonded to four equivalent In(1) atoms to form AsIn4 tetrahedra that share corners with four equivalent As(1)In4 tetrahedra and corners with eight equivalent Se(1)In4 tetrahedra. Se(1) is bonded to four equivalent In(1) atoms to form SeIn4 tetrahedra that share corners with four equivalent Se(1)In4 tetrahedra and corners with eight equivalent As(1)In4 tetrahedra.