Materials Data on HgNO3 by Materials Project
HgNO3 crystallizes in the cubic P4_132 space group. The structure is one-dimensional and consists of four HgNO3 ribbons oriented in the (1, 1, -1) direction. Hg1+ is bonded in a 2-coordinate geometry to two equivalent O2- atoms. Both Hg–O bond lengths are 2.59 Å. N5+ is bonded in a trigonal planar geometry to three O2- atoms. There is one shorter (1.24 Å) and two longer (1.28 Å) N–O bond length. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one N5+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to one Hg1+ and one N5+ atom.
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