Materials Data on BeH8(NF2)2 by Materials Project
(NH4)2BeF4 crystallizes in the orthorhombic Pnma space group. The structure is zero-dimensional and consists of four ammonium molecules and four BeNH4F4 clusters. In each BeNH4F4 cluster, Be2+ is bonded in a tetrahedral geometry to one N3- and three F1- atoms. The Be–N bond length is 1.77 Å. There is two shorter (1.55 Å) and one longer (1.60 Å) Be–F bond length. N3- is bonded in a distorted tetrahedral geometry to one Be2+ and three H1+ atoms. All N–H bond lengths are 1.03 Å. There are three inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a linear geometry to two F1- atoms. There is one shorter (1.02 Å) and one longer (1.34 Å) H–F bond length. In the second H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the third H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. There are three inequivalent F1- sites. In the first F1- site, F1- is bonded in a single-bond geometry to one Be2+ atom. In the second F1- site, F1- is bonded in a linear geometry to one Be2+ and one H1+ atom. In the third F1- site, F1- is bonded in a distorted single-bond geometry to one H1+ atom.
- 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:
- 1284899
- Report Number(s):
- mp-695866
- Country of Publication:
- United States
- Language:
- English
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