Cu2CoSnS4 is Stannite structured and crystallizes in the tetragonal I-42m space group. Co(1) is bonded to four equivalent S(1) atoms to form CoS4 tetrahedra that share corners with four equivalent Sn(1)S4 tetrahedra and corners with eight equivalent Cu(1)S4 tetrahedra. Cu(1) is bonded to four equivalent S(1) atoms to form CuS4 tetrahedra that share corners with four equivalent Co(1)S4 tetrahedra, corners with four equivalent Cu(1)S4 tetrahedra, and corners with four equivalent Sn(1)S4 tetrahedra. Sn(1) is bonded to four equivalent S(1) atoms to form SnS4 tetrahedra that share corners with four equivalent Co(1)S4 tetrahedra and corners with eight equivalent Cu(1)S4 tetrahedra. S(1) is bonded to one Co(1), two equivalent Cu(1), and one Sn(1) atom to form corner-sharing SCoCu2Sn tetrahedra.
Cu2CoSnS4 is Stannite structured and crystallizes in the tetragonal I-42m space group. Co(1) is bonded to four equivalent S(1) atoms to form CoS4 tetrahedra that share corners with four equivalent Sn(1)S4 tetrahedra and corners with eight equivalent Cu(1)S4 tetrahedra. All Co(1)-S(1) bond lengths are 2.26 Å. Cu(1) is bonded to four equivalent S(1) atoms to form CuS4 tetrahedra that share corners with four equivalent Co(1)S4 tetrahedra, corners with four equivalent Cu(1)S4 tetrahedra, and corners with four equivalent Sn(1)S4 tetrahedra. All Cu(1)-S(1) bond lengths are 2.30 Å. Sn(1) is bonded to four equivalent S(1) atoms to form SnS4 tetrahedra that share corners with four equivalent Co(1)S4 tetrahedra and corners with eight equivalent Cu(1)S4 tetrahedra. All Sn(1)-S(1) bond lengths are 2.49 Å. S(1) is bonded to one Co(1), two equivalent Cu(1), and one Sn(1) atom to form corner-sharing SCoCu2Sn tetrahedra.