Mg2RuN3 is Enargite-like structured and crystallizes in the orthorhombic Cmc2_1 space group. Mg(1) is bonded to one N(2) and three equivalent N(1) atoms to form MgN4 tetrahedra that share corners with five equivalent Ru(1)N4 tetrahedra and corners with seven equivalent Mg(1)N4 tetrahedra. Ru(1) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form RuN4 tetrahedra that share corners with two equivalent Ru(1)N4 tetrahedra and corners with ten equivalent Mg(1)N4 tetrahedra. There are two inequivalent N sites. In the first N site, N(1) is bonded to three equivalent Mg(1) and one Ru(1) atom to form NMg3Ru tetrahedra that share corners with five equivalent N(2)Mg2Ru2 tetrahedra and corners with seven equivalent N(1)Mg3Ru tetrahedra. In the second N site, N(2) is bonded to two equivalent Mg(1) and two equivalent Ru(1) atoms to form NMg2Ru2 tetrahedra that share corners with two equivalent N(2)Mg2Ru2 tetrahedra and corners with ten equivalent N(1)Mg3Ru tetrahedra.
Mg2RuN3 is Enargite-like structured and crystallizes in the orthorhombic Cmc2_1 space group. Mg(1) is bonded to one N(2) and three equivalent N(1) atoms to form MgN4 tetrahedra that share corners with five equivalent Ru(1)N4 tetrahedra and corners with seven equivalent Mg(1)N4 tetrahedra. The Mg(1)-N(2) bond length is 2.14 Å. There are a spread of Mg(1)-N(1) bond distances ranging from 2.09-2.12 Å. Ru(1) is bonded to two equivalent N(1) and two equivalent N(2) atoms to form RuN4 tetrahedra that share corners with two equivalent Ru(1)N4 tetrahedra and corners with ten equivalent Mg(1)N4 tetrahedra. Both Ru(1)-N(1) bond lengths are 1.87 Å. There is one shorter (1.94 Å) and one longer (1.95 Å) Ru(1)-N(2) bond length. There are two inequivalent N sites. In the first N site, N(1) is bonded to three equivalent Mg(1) and one Ru(1) atom to form NMg3Ru tetrahedra that share corners with five equivalent N(2)Mg2Ru2 tetrahedra and corners with seven equivalent N(1)Mg3Ru tetrahedra. In the second N site, N(2) is bonded to two equivalent Mg(1) and two equivalent Ru(1) atoms to form NMg2Ru2 tetrahedra that share corners with two equivalent N(2)Mg2Ru2 tetrahedra and corners with ten equivalent N(1)Mg3Ru tetrahedra.