U.S. Department of EnergyOffice of Scientific and Technical Information
Materials Data on K2Fe2B2O7 by Materials Project
Abstract
K2Fe2B2O7 crystallizes in the trigonal P321 space group. The structure is three-dimensional. there are two inequivalent K1+ sites. In the first K1+ site, K1+ is bonded in a 2-coordinate geometry to eight O2- atoms. There are a spread of K–O bond distances ranging from 2.73–3.30 Å. In the second K1+ site, K1+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of K–O bond distances ranging from 2.67–3.29 Å. There are three inequivalent Fe3+ sites. In the first Fe3+ site, Fe3+ is bonded to four O2- atoms to form corner-sharing FeO4 tetrahedra. There is one shorter (1.85 Å) and three longer (1.91 Å) Fe–O bond length. In the second Fe3+ site, Fe3+ is bonded to four O2- atoms to form corner-sharing FeO4 tetrahedra. There is one shorter (1.86 Å) and three longer (1.90 Å) Fe–O bond length. In the third Fe3+ site, Fe3+ is bonded to four O2- atoms to form corner-sharing FeO4 tetrahedra. There is one shorter (1.86 Å) and three longer (1.91 Å) Fe–O bond length. B3+ is bonded in a trigonal planar geometry to three O2- atoms. There is two shorter (1.38 Å) and one longer (1.39 Å) B–O bond length. Theremore »
- Publication Date:
- Other Number(s):
- mp-1195799
- DOE Contract Number:
- AC02-05CH11231
- Research Org.:
- LBNL Materials Project; Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
- Collaborations:
- The Materials Project; MIT; UC Berkeley; Duke; U Louvain
- Subject:
- 36 MATERIALS SCIENCE; B-Fe-K-O; K2Fe2B2O7; crystal structure
- OSTI Identifier:
- 1679769
- DOI:
- https://doi.org/10.17188/1679769
Citation Formats
Materials Data on K2Fe2B2O7 by Materials Project. United States: N. p., 2020.
Web. doi:10.17188/1679769.
Materials Data on K2Fe2B2O7 by Materials Project. United States. doi:https://doi.org/10.17188/1679769
2020.
"Materials Data on K2Fe2B2O7 by Materials Project". United States. doi:https://doi.org/10.17188/1679769. https://www.osti.gov/servlets/purl/1679769. Pub date:Wed Apr 29 00:00:00 EDT 2020
@article{osti_1679769,
title = {Materials Data on K2Fe2B2O7 by Materials Project},
abstractNote = {K2Fe2B2O7 crystallizes in the trigonal P321 space group. The structure is three-dimensional. there are two inequivalent K1+ sites. In the first K1+ site, K1+ is bonded in a 2-coordinate geometry to eight O2- atoms. There are a spread of K–O bond distances ranging from 2.73–3.30 Å. In the second K1+ site, K1+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of K–O bond distances ranging from 2.67–3.29 Å. There are three inequivalent Fe3+ sites. In the first Fe3+ site, Fe3+ is bonded to four O2- atoms to form corner-sharing FeO4 tetrahedra. There is one shorter (1.85 Å) and three longer (1.91 Å) Fe–O bond length. In the second Fe3+ site, Fe3+ is bonded to four O2- atoms to form corner-sharing FeO4 tetrahedra. There is one shorter (1.86 Å) and three longer (1.90 Å) Fe–O bond length. In the third Fe3+ site, Fe3+ is bonded to four O2- atoms to form corner-sharing FeO4 tetrahedra. There is one shorter (1.86 Å) and three longer (1.91 Å) Fe–O bond length. B3+ is bonded in a trigonal planar geometry to three O2- atoms. There is two shorter (1.38 Å) and one longer (1.39 Å) B–O bond length. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded in a 3-coordinate geometry to two K1+, one Fe3+, and one B3+ atom. In the second O2- site, O2- is bonded in a distorted linear geometry to three equivalent K1+ and two equivalent Fe3+ atoms. In the third O2- site, O2- is bonded in a distorted linear geometry to three equivalent K1+ and two Fe3+ atoms. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to two K1+, one Fe3+, and one B3+ atom. In the fifth O2- site, O2- is bonded in a 2-coordinate geometry to two K1+, one Fe3+, and one B3+ atom.},
doi = {10.17188/1679769},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {4}
}