Materials Data on Yb4As2O by Materials Project
Yb4As2O is (La,Ba)CuO4 structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. there are two inequivalent Yb2+ sites. In the first Yb2+ site, Yb2+ is bonded in a 6-coordinate geometry to five equivalent As3- and one O2- atom. There are one shorter (2.97 Å) and four longer (3.23 Å) Yb–As bond lengths. The Yb–O bond length is 2.59 Å. In the second Yb2+ site, Yb2+ is bonded in a distorted linear geometry to four equivalent As3- and two equivalent O2- atoms. All Yb–As bond lengths are 3.08 Å. Both Yb–O bond lengths are 2.26 Å. As3- is bonded in a 9-coordinate geometry to nine Yb2+ atoms. O2- is bonded to six Yb2+ atoms to form corner-sharing OYb6 octahedra. The corner-sharing octahedral tilt angles are 0°.
- Research Organization:
- LBNL Materials Project; Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
- Contributing Organization:
- The Materials Project; MIT; UC Berkeley; Duke; U Louvain
- DOE Contract Number:
- AC02-05CH11231
- OSTI ID:
- 1316159
- Report Number(s):
- mp-9799
- Country of Publication:
- United States
- Language:
- English
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