Materials Data on HoCrO2 by Materials Project
HoCrO2 crystallizes in the tetragonal I4_1/amd space group. The structure is three-dimensional. Ho is bonded to six equivalent O atoms to form edge-sharing HoO6 octahedra. There are four shorter (2.34 Å) and two longer (2.36 Å) Ho–O bond lengths. Cr is bonded in a square co-planar geometry to four equivalent O atoms. All Cr–O bond lengths are 2.13 Å. O is bonded to three equivalent Ho and two equivalent Cr atoms to form a mixture of distorted edge and corner-sharing OHo3Cr2 trigonal bipyramids.
36 MATERIALS SCIENCE↗