NaMg6C crystallizes in the orthorhombic Amm2 space group. Na(1) is bonded in a 6-coordinate geometry to two equivalent Mg(3) and four equivalent Mg(2) atoms. There are four inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a single-bond geometry to two equivalent Mg(4) and one C(1) atom. In the second Mg site, Mg(2) is bonded in a distorted water-like geometry to two equivalent Na(1) and two equivalent C(1) atoms. In the third Mg site, Mg(3) is bonded in a 2-coordinate geometry to two equivalent Na(1) and two equivalent Mg(4) atoms. In the fourth Mg site, Mg(4) is bonded in a 8-coordinate geometry to two equivalent Mg(3), two equivalent Mg(4), and four equivalent Mg(1) atoms. C(1) is bonded in a 6-coordinate geometry to two equivalent Mg(1) and four equivalent Mg(2) atoms.
NaMg6C crystallizes in the orthorhombic Amm2 space group. Na(1) is bonded in a 6-coordinate geometry to two equivalent Mg(3) and four equivalent Mg(2) atoms. Both Na(1)-Mg(3) bond lengths are 3.07 Å. All Na(1)-Mg(2) bond lengths are 3.20 Å. There are four inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a single-bond geometry to two equivalent Mg(4) and one C(1) atom. Both Mg(1)-Mg(4) bond lengths are 3.43 Å. The Mg(1)-C(1) bond length is 2.30 Å. In the second Mg site, Mg(2) is bonded in a distorted water-like geometry to two equivalent Na(1) and two equivalent C(1) atoms. Both Mg(2)-C(1) bond lengths are 2.25 Å. In the third Mg site, Mg(3) is bonded in a 2-coordinate geometry to two equivalent Na(1) and two equivalent Mg(4) atoms. Both Mg(3)-Mg(4) bond lengths are 2.96 Å. In the fourth Mg site, Mg(4) is bonded in a 8-coordinate geometry to two equivalent Mg(3), two equivalent Mg(4), and four equivalent Mg(1) atoms. Both Mg(4)-Mg(4) bond lengths are 3.45 Å. C(1) is bonded in a 6-coordinate geometry to two equivalent Mg(1) and four equivalent Mg(2) atoms.