Materials Data on Yb2SeO2 by Materials Project
Yb2SeO2 crystallizes in the trigonal P-3m1 space group. The structure is three-dimensional. Yb3+ is bonded to three equivalent Se2- and four equivalent O2- atoms to form a mixture of distorted edge and corner-sharing YbSe3O4 trigonal pyramids. All Yb–Se bond lengths are 3.32 Å. There are three shorter (2.19 Å) and one longer (2.27 Å) Yb–O bond lengths. Se2- is bonded in a 6-coordinate geometry to six equivalent Yb3+ atoms. O2- is bonded to four equivalent Yb3+ atoms to form a mixture of distorted edge and corner-sharing OYb4 trigonal pyramids.