Materials Data on YbCO4 by Materials Project
YbCO4 crystallizes in the tetragonal P4_2/nmc space group. The structure is three-dimensional. Yb is bonded to eight O atoms to form a mixture of distorted corner and edge-sharing YbO8 hexagonal bipyramids. There are a spread of Yb–O bond distances ranging from 2.32–2.52 Å. C is bonded in a trigonal planar geometry to three O atoms. All C–O bond lengths are 1.29 Å. There are three inequivalent O sites. In the first O site, O is bonded in a 3-coordinate geometry to two equivalent Yb and one C atom. In the second O site, O is bonded in a bent 150 degrees geometry to two equivalent Yb atoms. In the third O site, O is bonded in a distorted T-shaped geometry to two equivalent Yb and one C atom.
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