Mg2RuH6 crystallizes in the cubic Fm-3m space group. Mg(1) is bonded to twelve equivalent H(1) atoms to form MgH12 cuboctahedra that share corners with twelve equivalent Mg(1)H12 cuboctahedra, faces with six equivalent Mg(1)H12 cuboctahedra, and faces with four equivalent Ru(1)H6 octahedra. Ru(1) is bonded to six equivalent H(1) atoms to form RuH6 octahedra that share faces with eight equivalent Mg(1)H12 cuboctahedra. H(1) is bonded to four equivalent Mg(1) and one Ru(1) atom to form a mixture of edge, corner, and face-sharing HMg4Ru square pyramids.
Mg2RuH6 crystallizes in the cubic Fm-3m space group. Mg(1) is bonded to twelve equivalent H(1) atoms to form MgH12 cuboctahedra that share corners with twelve equivalent Mg(1)H12 cuboctahedra, faces with six equivalent Mg(1)H12 cuboctahedra, and faces with four equivalent Ru(1)H6 octahedra. All Mg(1)-H(1) bond lengths are 2.33 Å. Ru(1) is bonded to six equivalent H(1) atoms to form RuH6 octahedra that share faces with eight equivalent Mg(1)H12 cuboctahedra. All Ru(1)-H(1) bond lengths are 1.67 Å. H(1) is bonded to four equivalent Mg(1) and one Ru(1) atom to form a mixture of edge, corner, and face-sharing HMg4Ru square pyramids.