HfRuSi crystallizes in the hexagonal P-62m space group. Hf(1) is bonded in a 11-coordinate geometry to six equivalent Ru(1), one Si(2), and four equivalent Si(1) atoms. Ru(1) is bonded in a 10-coordinate geometry to six equivalent Hf(1), two equivalent Si(1), and two equivalent Si(2) atoms. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 9-coordinate geometry to six equivalent Hf(1) and three equivalent Ru(1) atoms. In the second Si site, Si(2) is bonded in a 9-coordinate geometry to three equivalent Hf(1) and six equivalent Ru(1) atoms.
HfRuSi crystallizes in the hexagonal P-62m space group. Hf(1) is bonded in a 11-coordinate geometry to six equivalent Ru(1), one Si(2), and four equivalent Si(1) atoms. There are two shorter (2.90 Å) and four longer (3.02 Å) Hf(1)-Ru(1) bond lengths. The Hf(1)-Si(2) bond length is 2.75 Å. All Hf(1)-Si(1) bond lengths are 2.71 Å. Ru(1) is bonded in a 10-coordinate geometry to six equivalent Hf(1), two equivalent Si(1), and two equivalent Si(2) atoms. Both Ru(1)-Si(1) bond lengths are 2.55 Å. Both Ru(1)-Si(2) bond lengths are 2.45 Å. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 9-coordinate geometry to six equivalent Hf(1) and three equivalent Ru(1) atoms. In the second Si site, Si(2) is bonded in a 9-coordinate geometry to three equivalent Hf(1) and six equivalent Ru(1) atoms.