AsSeAg crystallizes in the orthorhombic Pnma space group. Ag(1) is bonded to one As(1) and three equivalent Se(1) atoms to form AgAsSe3 tetrahedra that share  a cornercorner with one Se(1)Ag3As tetrahedra, corners with five equivalent As(1)AgAs2Se tetrahedra, and corners with six equivalent Ag(1)AsSe3 tetrahedra. As(1) is bonded to one Ag(1), two equivalent As(1), and one Se(1) atom to form distorted AsAgAs2Se tetrahedra that share corners with two equivalent As(1)AgAs2Se tetrahedra, corners with five equivalent Ag(1)AsSe3 tetrahedra, and corners with five equivalent Se(1)Ag3As tetrahedra. Se(1) is bonded to three equivalent Ag(1) and one As(1) atom to form SeAg3As tetrahedra that share  a cornercorner with one Ag(1)AsSe3 tetrahedra, corners with five equivalent As(1)AgAs2Se tetrahedra, and corners with six equivalent Se(1)Ag3As tetrahedra.
AsSeAg crystallizes in the orthorhombic Pnma space group. Ag(1) is bonded to one As(1) and three equivalent Se(1) atoms to form AgAsSe3 tetrahedra that share  a cornercorner with one Se(1)Ag3As tetrahedra, corners with five equivalent As(1)AgAs2Se tetrahedra, and corners with six equivalent Ag(1)AsSe3 tetrahedra. The Ag(1)-As(1) bond length is 2.61 Å. All Ag(1)-Se(1) bond lengths are 2.67 Å. As(1) is bonded to one Ag(1), two equivalent As(1), and one Se(1) atom to form distorted AsAgAs2Se tetrahedra that share corners with two equivalent As(1)AgAs2Se tetrahedra, corners with five equivalent Ag(1)AsSe3 tetrahedra, and corners with five equivalent Se(1)Ag3As tetrahedra. Both As(1)-As(1) bond lengths are 2.60 Å. The As(1)-Se(1) bond length is 2.40 Å. Se(1) is bonded to three equivalent Ag(1) and one As(1) atom to form SeAg3As tetrahedra that share  a cornercorner with one Ag(1)AsSe3 tetrahedra, corners with five equivalent As(1)AgAs2Se tetrahedra, and corners with six equivalent Se(1)Ag3As tetrahedra.