Mg6LaCo crystallizes in the orthorhombic Amm2 space group. There are four inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 12-coordinate geometry to two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), two equivalent La(1), and two equivalent Co(1) atoms. In the second Mg site, Mg(2) is bonded in a 12-coordinate geometry to two equivalent Mg(4), four equivalent Mg(1), four equivalent Mg(3), and two equivalent Co(1) atoms. In the third Mg site, Mg(3) is bonded in a 12-coordinate geometry to two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), two equivalent La(1), and two equivalent Co(1) atoms. In the fourth Mg site, Mg(4) is bonded in a 10-coordinate geometry to two equivalent Mg(2), four equivalent Mg(1), four equivalent Mg(3), and two equivalent La(1) atoms. La(1) is bonded in a 12-coordinate geometry to two equivalent Mg(4), four equivalent Mg(1), four equivalent Mg(3), and two equivalent Co(1) atoms. Co(1) is bonded in a 10-coordinate geometry to two equivalent Mg(2), four equivalent Mg(1), four equivalent Mg(3), and two equivalent La(1) atoms.
Mg6LaCo crystallizes in the orthorhombic Amm2 space group. There are four inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 12-coordinate geometry to two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), two equivalent La(1), and two equivalent Co(1) atoms. There is one shorter (3.03 Å) and one longer (3.43 Å) Mg(1)-Mg(1) bond length. There is one shorter (3.23 Å) and one longer (3.39 Å) Mg(1)-Mg(2) bond length. Both Mg(1)-Mg(3) bond lengths are 2.94 Å. Both Mg(1)-Mg(4) bond lengths are 3.08 Å. Both Mg(1)-La(1) bond lengths are 3.32 Å. There is one shorter (3.05 Å) and one longer (3.55 Å) Mg(1)-Co(1) bond length. In the second Mg site, Mg(2) is bonded in a 12-coordinate geometry to two equivalent Mg(4), four equivalent Mg(1), four equivalent Mg(3), and two equivalent Co(1) atoms. Both Mg(2)-Mg(4) bond lengths are 3.12 Å. All Mg(2)-Mg(3) bond lengths are 3.17 Å. Both Mg(2)-Co(1) bond lengths are 3.23 Å. In the third Mg site, Mg(3) is bonded in a 12-coordinate geometry to two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), two equivalent La(1), and two equivalent Co(1) atoms. There is one shorter (3.09 Å) and one longer (3.38 Å) Mg(3)-Mg(3) bond length. There is one shorter (3.12 Å) and one longer (3.48 Å) Mg(3)-Mg(4) bond length. There is one shorter (3.11 Å) and one longer (3.49 Å) Mg(3)-La(1) bond length. Both Mg(3)-Co(1) bond lengths are 3.07 Å. In the fourth Mg site, Mg(4) is bonded in a 10-coordinate geometry to two equivalent Mg(2), four equivalent Mg(1), four equivalent Mg(3), and two equivalent La(1) atoms. Both Mg(4)-La(1) bond lengths are 3.25 Å. La(1) is bonded in a 12-coordinate geometry to two equivalent Mg(4), four equivalent Mg(1), four equivalent Mg(3), and two equivalent Co(1) atoms. Both La(1)-Co(1) bond lengths are 2.97 Å. Co(1) is bonded in a 10-coordinate geometry to two equivalent Mg(2), four equivalent Mg(1), four equivalent Mg(3), and two equivalent La(1) atoms.