YNiO3 crystallizes in the hexagonal P6_3/mmc space group. Y(1) is bonded in a 6-coordinate geometry to six equivalent O(1) atoms. Ni(1) is bonded to two equivalent O(1) and three equivalent O(2) atoms to form corner-sharing NiO5 trigonal bipyramids. There are two inequivalent O sites. In the first O site, O(2) is bonded in a distorted trigonal planar geometry to three equivalent Ni(1) atoms. In the second O site, O(1) is bonded to three equivalent Y(1) and one Ni(1) atom to form a mixture of corner and edge-sharing OY3Ni tetrahedra.
YNiO3 crystallizes in the hexagonal P6_3/mmc space group. Y(1) is bonded in a 6-coordinate geometry to six equivalent O(1) atoms. All Y(1)-O(1) bond lengths are 2.28 Å. Ni(1) is bonded to two equivalent O(1) and three equivalent O(2) atoms to form corner-sharing NiO5 trigonal bipyramids. Both Ni(1)-O(1) bond lengths are 1.84 Å. All Ni(1)-O(2) bond lengths are 2.05 Å. There are two inequivalent O sites. In the first O site, O(2) is bonded in a distorted trigonal planar geometry to three equivalent Ni(1) atoms. In the second O site, O(1) is bonded to three equivalent Y(1) and one Ni(1) atom to form a mixture of corner and edge-sharing OY3Ni tetrahedra.