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Materials Data on BeAlH5 by Materials Project

Dataset ·
DOI:https://doi.org/10.17188/1199686· OSTI ID:1199686
BeAlH5 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. Be2+ is bonded to four H1- atoms to form BeH4 tetrahedra that share corners with four equivalent AlH6 octahedra. The corner-sharing octahedra tilt angles range from 41–52°. All Be–H bond lengths are 1.43 Å. Al3+ is bonded to six H1- atoms to form AlH6 octahedra that share corners with two equivalent AlH6 octahedra and corners with four equivalent BeH4 tetrahedra. The corner-sharing octahedral tilt angles are 45°. There are a spread of Al–H bond distances ranging from 1.71–1.73 Å. There are three inequivalent H1- sites. In the first H1- site, H1- is bonded in a bent 150 degrees geometry to one Be2+ and one Al3+ atom. In the second H1- site, H1- is bonded in a distorted bent 150 degrees geometry to two equivalent Al3+ atoms. In the third H1- site, H1- is bonded in a bent 120 degrees geometry to one Be2+ and one Al3+ 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:
1199686
Report Number(s):
mp-23720
Country of Publication:
United States
Language:
English

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