Materials Data on Hg3AsClO4 by Materials Project
Hg3AsO4Cl crystallizes in the cubic P2_13 space group. The structure is three-dimensional. Hg2+ is bonded in a 2-coordinate geometry to three O2- and one Cl1- atom. There are a spread of Hg–O bond distances ranging from 2.28–2.74 Å. The Hg–Cl bond length is 2.85 Å. As3+ is bonded in a tetrahedral geometry to four O2- atoms. There is one shorter (1.71 Å) and three longer (1.75 Å) As–O bond length. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Hg2+ and one As3+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to three equivalent Hg2+ and one As3+ atom. Cl1- is bonded in a 3-coordinate geometry to three equivalent Hg2+ atoms.
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