MgFeCu2SnS4 crystallizes in the tetragonal P-42m space group. Mg(1) is bonded in a 10-coordinate geometry to four equivalent Cu(1), two equivalent Sn(1), and four equivalent S(1) atoms. Fe(1) is bonded in a distorted tetrahedral geometry to four equivalent S(1) atoms. Cu(1) is bonded in a 6-coordinate geometry to two equivalent Mg(1) and four equivalent S(1) atoms. Sn(1) is bonded in a 6-coordinate geometry to two equivalent Mg(1) and four equivalent S(1) atoms. S(1) is bonded in a 5-coordinate geometry to one Mg(1), one Fe(1), two equivalent Cu(1), and one Sn(1) atom.
MgFeCu2SnS4 crystallizes in the tetragonal P-42m space group. Mg(1) is bonded in a 10-coordinate geometry to four equivalent Cu(1), two equivalent Sn(1), and four equivalent S(1) atoms. All Mg(1)-Cu(1) bond lengths are 2.75 Å. Both Mg(1)-Sn(1) bond lengths are 3.02 Å. All Mg(1)-S(1) bond lengths are 2.55 Å. Fe(1) is bonded in a distorted tetrahedral geometry to four equivalent S(1) atoms. All Fe(1)-S(1) bond lengths are 2.40 Å. Cu(1) is bonded in a 6-coordinate geometry to two equivalent Mg(1) and four equivalent S(1) atoms. All Cu(1)-S(1) bond lengths are 2.37 Å. Sn(1) is bonded in a 6-coordinate geometry to two equivalent Mg(1) and four equivalent S(1) atoms. All Sn(1)-S(1) bond lengths are 2.75 Å. S(1) is bonded in a 5-coordinate geometry to one Mg(1), one Fe(1), two equivalent Cu(1), and one Sn(1) atom.