YHO2 crystallizes in the orthorhombic Pnma space group. Y(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form a mixture of edge and corner-sharing YO6 octahedra. The corner-sharing octahedral tilt angles are 59°. H(1) is bonded in a single-bond geometry to one O(1) atom. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to three equivalent Y(1) and one H(1) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to three equivalent Y(1) atoms.
YHO2 crystallizes in the orthorhombic Pnma space group. Y(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form a mixture of edge and corner-sharing YO6 octahedra. The corner-sharing octahedral tilt angles are 59°. There is one shorter (2.39 Å) and two longer (2.42 Å) Y(1)-O(1) bond lengths. All Y(1)-O(2) bond lengths are 2.22 Å. H(1) is bonded in a single-bond geometry to one O(1) atom. The H(1)-O(1) bond length is 0.99 Å. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to three equivalent Y(1) and one H(1) atom. In the second O site, O(2) is bonded in a trigonal planar geometry to three equivalent Y(1) atoms.