YAgSi crystallizes in the hexagonal P-62m space group. Y(1) is bonded in a 11-coordinate geometry to six equivalent Ag(1), one Si(2), and four equivalent Si(1) atoms. Ag(1) is bonded in a 12-coordinate geometry to six equivalent Y(1), two equivalent Ag(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 Y(1) and three equivalent Ag(1) atoms. In the second Si site, Si(2) is bonded in a 9-coordinate geometry to three equivalent Y(1) and six equivalent Ag(1) atoms.
YAgSi crystallizes in the hexagonal P-62m space group. Y(1) is bonded in a 11-coordinate geometry to six equivalent Ag(1), one Si(2), and four equivalent Si(1) atoms. There are two shorter (3.14 Å) and four longer (3.31 Å) Y(1)-Ag(1) bond lengths. The Y(1)-Si(2) bond length is 2.94 Å. All Y(1)-Si(1) bond lengths are 2.98 Å. Ag(1) is bonded in a 12-coordinate geometry to six equivalent Y(1), two equivalent Ag(1), two equivalent Si(1), and two equivalent Si(2) atoms. Both Ag(1)-Ag(1) bond lengths are 3.04 Å. Both Ag(1)-Si(1) bond lengths are 2.69 Å. Both Ag(1)-Si(2) bond lengths are 2.74 Å. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 9-coordinate geometry to six equivalent Y(1) and three equivalent Ag(1) atoms. In the second Si site, Si(2) is bonded in a 9-coordinate geometry to three equivalent Y(1) and six equivalent Ag(1) atoms.