Materials Data on YCoO3 by Materials Project
YCoO3 crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Y3+ is bonded in a distorted body-centered cubic geometry to eight O2- atoms. There are six shorter (2.30 Å) and two longer (2.80 Å) Y–O bond lengths. Co3+ is bonded to five O2- atoms to form corner-sharing CoO5 trigonal bipyramids. There is two shorter (1.86 Å) and three longer (2.10 Å) Co–O bond length. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Y3+ and three equivalent Co3+ atoms. In the second O2- site, O2- is bonded to three equivalent Y3+ and one Co3+ atom to form a mixture of edge and corner-sharing OY3Co tetrahedra.
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