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Materials Data on Ca4H16C8O25 by Materials Project

Dataset ·
DOI:https://doi.org/10.17188/1664020· OSTI ID:1664020
(CaH4(CO3)2)8O2 crystallizes in the tetragonal I4 space group. The structure is three-dimensional and consists of two water molecules and one CaH4(CO3)2 framework. In the CaH4(CO3)2 framework, Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.41–2.53 Å. There are two inequivalent C+3.25+ sites. In the first C+3.25+ site, C+3.25+ is bonded in a bent 120 degrees geometry to two O2- atoms. Both C–O bond lengths are 1.27 Å. In the second C+3.25+ site, C+3.25+ is bonded in a bent 120 degrees geometry to two O2- atoms. Both C–O bond lengths are 1.27 Å. There are four inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. In the second H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. In the third H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Ca2+ and one C+3.25+ atom. In the second O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Ca2+ and one C+3.25+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Ca2+ and one C+3.25+ atom. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Ca2+ and one C+3.25+ atom. In the fifth O2- site, O2- is bonded in a distorted water-like geometry to one Ca2+ and two H1+ atoms. In the sixth O2- site, O2- is bonded in a distorted water-like geometry to one Ca2+ and two H1+ atoms.
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:
1664020
Report Number(s):
mp-1227890
Country of Publication:
United States
Language:
English

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