MgCuAs is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. Mg(1) is bonded in a 9-coordinate geometry to four equivalent Cu(1) and five equivalent As(1) atoms. Cu(1) is bonded in a 8-coordinate geometry to four equivalent Mg(1) and four equivalent As(1) atoms. As(1) is bonded in a 9-coordinate geometry to five equivalent Mg(1) and four equivalent Cu(1) atoms.
MgCuAs is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. Mg(1) is bonded in a 9-coordinate geometry to four equivalent Cu(1) and five equivalent As(1) atoms. All Mg(1)-Cu(1) bond lengths are 2.81 Å. There is one shorter (2.67 Å) and four longer (2.84 Å) Mg(1)-As(1) bond lengths. Cu(1) is bonded in a 8-coordinate geometry to four equivalent Mg(1) and four equivalent As(1) atoms. All Cu(1)-As(1) bond lengths are 2.54 Å. As(1) is bonded in a 9-coordinate geometry to five equivalent Mg(1) and four equivalent Cu(1) atoms.