Y3RuI3 crystallizes in the monoclinic P2_1/m space group. There are three inequivalent Y sites. In the first Y site, Y(1) is bonded to three equivalent Ru(1), one I(2), and two equivalent I(3) atoms to form distorted edge-sharing YRu3I3 octahedra. In the second Y site, Y(2) is bonded in a 6-coordinate geometry to one Ru(1), two equivalent I(1), and three equivalent I(2) atoms. In the third Y site, Y(3) is bonded in a 6-coordinate geometry to two equivalent Ru(1), one I(1), and three equivalent I(3) atoms. Ru(1) is bonded to one Y(2), two equivalent Y(3), and three equivalent Y(1) atoms to form distorted edge-sharing RuY6 octahedra. There are three inequivalent I sites. In the first I site, I(1) is bonded in a distorted T-shaped geometry to one Y(3) and two equivalent Y(2) atoms. In the second I site, I(2) is bonded in a 4-coordinate geometry to one Y(1) and three equivalent Y(2) atoms. In the third I site, I(3) is bonded in a 5-coordinate geometry to two equivalent Y(1) and three equivalent Y(3) atoms.
Y3RuI3 crystallizes in the monoclinic P2_1/m space group. There are three inequivalent Y sites. In the first Y site, Y(1) is bonded to three equivalent Ru(1), one I(2), and two equivalent I(3) atoms to form distorted edge-sharing YRu3I3 octahedra. There are two shorter (2.72 Å) and one longer (2.83 Å) Y(1)-Ru(1) bond length. The Y(1)-I(2) bond length is 3.27 Å. Both Y(1)-I(3) bond lengths are 3.35 Å. In the second Y site, Y(2) is bonded in a 6-coordinate geometry to one Ru(1), two equivalent I(1), and three equivalent I(2) atoms. The Y(2)-Ru(1) bond length is 2.75 Å. Both Y(2)-I(1) bond lengths are 3.12 Å. There are two shorter (3.20 Å) and one longer (3.54 Å) Y(2)-I(2) bond length. In the third Y site, Y(3) is bonded in a 6-coordinate geometry to two equivalent Ru(1), one I(1), and three equivalent I(3) atoms. Both Y(3)-Ru(1) bond lengths are 2.79 Å. The Y(3)-I(1) bond length is 3.25 Å. There is one shorter (3.36 Å) and two longer (3.50 Å) Y(3)-I(3) bond lengths. Ru(1) is bonded to one Y(2), two equivalent Y(3), and three equivalent Y(1) atoms to form distorted edge-sharing RuY6 octahedra. There are three inequivalent I sites. In the first I site, I(1) is bonded in a distorted T-shaped geometry to one Y(3) and two equivalent Y(2) atoms. In the second I site, I(2) is bonded in a 4-coordinate geometry to one Y(1) and three equivalent Y(2) atoms. In the third I site, I(3) is bonded in a 5-coordinate geometry to two equivalent Y(1) and three equivalent Y(3) atoms.