Materials Data on K2MgO2 by Materials Project
K2MgO2 crystallizes in the orthorhombic Pbcn space group. The structure is three-dimensional. K1+ is bonded in a 4-coordinate geometry to four equivalent O2- atoms. There are a spread of K–O bond distances ranging from 2.67–2.89 Å. Mg2+ is bonded to four equivalent O2- atoms to form distorted edge-sharing MgO4 tetrahedra. There are two shorter (2.01 Å) and two longer (2.04 Å) Mg–O bond lengths. O2- is bonded in a 2-coordinate geometry to four equivalent K1+ and two equivalent Mg2+ atoms.
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