Ce7Ru3 crystallizes in the hexagonal P6_3mc space group. There are three inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a distorted water-like geometry to four equivalent Ru(1) atoms. In the second Ce site, Ce(2) is bonded in a 3-coordinate geometry to four equivalent Ru(1) atoms. In the third Ce site, Ce(3) is bonded in a 3-coordinate geometry to three equivalent Ru(1) atoms. Ru(1) is bonded in a 9-coordinate geometry to one Ce(3), four equivalent Ce(1), and four equivalent Ce(2) atoms.
Ce7Ru3 crystallizes in the hexagonal P6_3mc space group. There are three inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a distorted water-like geometry to four equivalent Ru(1) atoms. There are two shorter (2.83 Å) and two longer (3.42 Å) Ce(1)-Ru(1) bond lengths. In the second Ce site, Ce(2) is bonded in a 3-coordinate geometry to four equivalent Ru(1) atoms. There are a spread of Ce(2)-Ru(1) bond distances ranging from 2.70-3.40 Å. In the third Ce site, Ce(3) is bonded in a 3-coordinate geometry to three equivalent Ru(1) atoms. All Ce(3)-Ru(1) bond lengths are 2.97 Å. Ru(1) is bonded in a 9-coordinate geometry to one Ce(3), four equivalent Ce(1), and four equivalent Ce(2) atoms.