ThRuSi3 crystallizes in the tetragonal I4mm space group. Th(1) is bonded in a 17-coordinate geometry to five equivalent Ru(1), four equivalent Si(1), and eight equivalent Si(2) atoms. Ru(1) is bonded in a 5-coordinate geometry to five equivalent Th(1), one Si(1), and four equivalent Si(2) atoms. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a distorted single-bond geometry to four equivalent Th(1), one Ru(1), and four equivalent Si(2) atoms. In the second Si site, Si(2) is bonded in a distorted bent 120 degrees geometry to four equivalent Th(1), two equivalent Ru(1), and two equivalent Si(1) atoms.
ThRuSi3 crystallizes in the tetragonal I4mm space group. Th(1) is bonded in a 17-coordinate geometry to five equivalent Ru(1), four equivalent Si(1), and eight equivalent Si(2) atoms. There is one shorter (3.36 Å) and four longer (3.39 Å) Th(1)-Ru(1) bond lengths. All Th(1)-Si(1) bond lengths are 3.09 Å. There are four shorter (3.12 Å) and four longer (3.39 Å) Th(1)-Si(2) bond lengths. Ru(1) is bonded in a 5-coordinate geometry to five equivalent Th(1), one Si(1), and four equivalent Si(2) atoms. The Ru(1)-Si(1) bond length is 2.35 Å. All Ru(1)-Si(2) bond lengths are 2.37 Å. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a distorted single-bond geometry to four equivalent Th(1), one Ru(1), and four equivalent Si(2) atoms. All Si(1)-Si(2) bond lengths are 2.61 Å. In the second Si site, Si(2) is bonded in a distorted bent 120 degrees geometry to four equivalent Th(1), two equivalent Ru(1), and two equivalent Si(1) atoms.