Materials Data on Li2HgO2 by Materials Project
Li2HgO2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Li1+ is bonded to five equivalent O2- atoms to form a mixture of edge and corner-sharing LiO5 square pyramids. There are one shorter (1.98 Å) and four longer (2.22 Å) Li–O bond lengths. Hg2+ is bonded in a linear geometry to two equivalent O2- atoms. Both Hg–O bond lengths are 2.02 Å. O2- is bonded to five equivalent Li1+ and one Hg2+ atom to form a mixture of distorted edge and corner-sharing OLi5Hg octahedra. The corner-sharing octahedra tilt angles range from 0–20°.
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