Materials Data on YbI3O10 by Materials Project
YbO10I3 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Yb is bonded in a 8-coordinate geometry to eight O atoms. There are a spread of Yb–O bond distances ranging from 2.35–2.77 Å. There are ten inequivalent O sites. In the first O site, O is bonded in a bent 120 degrees geometry to one Yb and one I atom. The O–I bond length is 1.82 Å. In the second O site, O is bonded in a distorted bent 120 degrees geometry to one Yb and one I atom. The O–I bond length is 1.89 Å. In the third O site, O is bonded in a bent 120 degrees geometry to one O and one I atom. The O–O bond length is 1.40 Å. The O–I bond length is 2.07 Å. In the fourth O site, O is bonded in a distorted bent 150 degrees geometry to one Yb and one I atom. The O–I bond length is 1.87 Å. In the fifth O site, O is bonded in a distorted trigonal non-coplanar geometry to one Yb, one O, and one I atom. The O–O bond length is 1.41 Å. The O–I bond length is 2.49 Å. In the sixth O site, O is bonded in a bent 120 degrees geometry to two O atoms. The O–O bond length is 1.34 Å. In the seventh O site, O is bonded in a bent 120 degrees geometry to one Yb and one O atom. In the eighth O site, O is bonded in a bent 150 degrees geometry to one Yb and one I atom. The O–I bond length is 1.82 Å. In the ninth O site, O is bonded in a trigonal non-coplanar geometry to one Yb, one O, and one I atom. The O–I bond length is 2.44 Å. In the tenth O site, O is bonded in a trigonal non-coplanar geometry to one Yb and two equivalent I atoms. There are one shorter (1.99 Å) and one longer (2.17 Å) O–I bond lengths. There are three inequivalent I sites. In the first I site, I is bonded in a 2-coordinate geometry to three O atoms. In the second I site, I is bonded in a 3-coordinate geometry to three O atoms. In the third I site, I is bonded in a distorted T-shaped geometry to three O atoms.