Materials Data on Ba2Mg3F10 by Materials Project
Ba2Mg3F10 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are two inequivalent Ba2+ sites. In the first Ba2+ site, Ba2+ is bonded in a 12-coordinate geometry to twelve F1- atoms. There are a spread of Ba–F bond distances ranging from 2.63–3.18 Å. In the second Ba2+ site, Ba2+ is bonded to twelve F1- atoms to form distorted BaF12 cuboctahedra that share corners with four equivalent BaF12 cuboctahedra, corners with two equivalent MgF6 octahedra, an edgeedge with one BaF12 cuboctahedra, edges with two equivalent MgF6 octahedra, and faces with five MgF6 octahedra. The corner-sharing octahedral tilt angles are 46°. There are a spread of Ba–F bond distances ranging from 2.76–3.08 Å. There are three inequivalent Mg2+ sites. In the first Mg2+ site, Mg2+ is bonded to six F1- atoms to form MgF6 octahedra that share corners with two equivalent BaF12 cuboctahedra, corners with three MgF6 octahedra, an edgeedge with one MgF6 octahedra, and faces with two equivalent BaF12 cuboctahedra. The corner-sharing octahedra tilt angles range from 7–50°. There are a spread of Mg–F bond distances ranging from 1.96–2.14 Å. In the second Mg2+ site, Mg2+ is bonded to six F1- atoms to form MgF6 octahedra that share corners with five MgF6 octahedra and faces with three equivalent BaF12 cuboctahedra. The corner-sharing octahedra tilt angles range from 0–50°. There are a spread of Mg–F bond distances ranging from 1.97–2.07 Å. In the third Mg2+ site, Mg2+ is bonded to six F1- atoms to form MgF6 octahedra that share corners with four MgF6 octahedra, edges with two equivalent BaF12 cuboctahedra, and edges with two equivalent MgF6 octahedra. The corner-sharing octahedral tilt angles are 50°. There are a spread of Mg–F bond distances ranging from 2.00–2.04 Å. There are eight inequivalent F1- sites. In the first F1- site, F1- is bonded in a distorted single-bond geometry to four Ba2+ and one Mg2+ atom. In the second F1- site, F1- is bonded in a distorted L-shaped geometry to one Ba2+ and two equivalent Mg2+ atoms. In the third F1- site, F1- is bonded in a 2-coordinate geometry to two equivalent Ba2+ and two equivalent Mg2+ atoms. In the fourth F1- site, F1- is bonded in a linear geometry to four Ba2+ and two equivalent Mg2+ atoms. In the fifth F1- site, F1- is bonded in a 2-coordinate geometry to two Ba2+ and two Mg2+ atoms. In the sixth F1- site, F1- is bonded in a 1-coordinate geometry to three Ba2+ and one Mg2+ atom. In the seventh F1- site, F1- is bonded in a distorted trigonal planar geometry to three Mg2+ atoms. In the eighth F1- site, F1- is bonded in a distorted linear geometry to three Ba2+ and two Mg2+ atoms.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). LBNL Materials Project
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Contributing Organization:
- MIT; UC Berkeley; Duke; U Louvain
- DOE Contract Number:
- AC02-05CH11231; EDCBEE
- OSTI ID:
- 1264980
- Report Number(s):
- mp-541162
- Resource Relation:
- Related Information: https://materialsproject.org/citing
- Country of Publication:
- United States
- Language:
- English
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