Nd2RuGe2 crystallizes in the monoclinic C2/m space group. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 10-coordinate geometry to four equivalent Ru(1), two equivalent Ge(2), and four equivalent Ge(1) atoms. In the second Nd site, Nd(2) is bonded in a 8-coordinate geometry to two equivalent Ru(1), one Ge(1), and five equivalent Ge(2) atoms. Ru(1) is bonded in a 10-coordinate geometry to two equivalent Nd(2), four equivalent Nd(1), one Ge(2), and three equivalent Ge(1) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 8-coordinate geometry to one Nd(2), four equivalent Nd(1), and three equivalent Ru(1) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent Nd(1), five equivalent Nd(2), one Ru(1), and one Ge(2) atom.
Nd2RuGe2 crystallizes in the monoclinic C2/m space group. There are two inequivalent Nd sites. In the first Nd site, Nd(1) is bonded in a 10-coordinate geometry to four equivalent Ru(1), two equivalent Ge(2), and four equivalent Ge(1) atoms. There are a spread of Nd(1)-Ru(1) bond distances ranging from 3.13-3.38 Å. Both Nd(1)-Ge(2) bond lengths are 3.03 Å. There are two shorter (3.15 Å) and two longer (3.30 Å) Nd(1)-Ge(1) bond lengths. In the second Nd site, Nd(2) is bonded in a 8-coordinate geometry to two equivalent Ru(1), one Ge(1), and five equivalent Ge(2) atoms. Both Nd(2)-Ru(1) bond lengths are 3.42 Å. The Nd(2)-Ge(1) bond length is 2.98 Å. There are a spread of Nd(2)-Ge(2) bond distances ranging from 3.11-3.41 Å. Ru(1) is bonded in a 10-coordinate geometry to two equivalent Nd(2), four equivalent Nd(1), one Ge(2), and three equivalent Ge(1) atoms. The Ru(1)-Ge(2) bond length is 2.64 Å. There are two shorter (2.49 Å) and one longer (2.52 Å) Ru(1)-Ge(1) bond length. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 8-coordinate geometry to one Nd(2), four equivalent Nd(1), and three equivalent Ru(1) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent Nd(1), five equivalent Nd(2), one Ru(1), and one Ge(2) atom. The Ge(2)-Ge(2) bond length is 2.73 Å.