Materials Data on BaMgO2 by Materials Project
BaMgO2 crystallizes in the trigonal P3_121 space group. The structure is three-dimensional. Ba2+ is bonded in a 8-coordinate geometry to eight equivalent O2- atoms. There are a spread of Ba–O bond distances ranging from 2.73–3.29 Å. Mg2+ is bonded to four equivalent O2- atoms to form corner-sharing MgO4 tetrahedra. There is two shorter (1.97 Å) and two longer (2.01 Å) Mg–O bond length. O2- is bonded in a 2-coordinate geometry to four equivalent Ba2+ and two equivalent Mg2+ atoms.
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