Materials Data on Hg(CO2)2 by Materials Project
Hg(CO2)2 crystallizes in the monoclinic P2_1 space group. The structure is zero-dimensional and consists of two mercuric formate molecules. Hg2+ is bonded in a distorted linear geometry to two O2- atoms. Both Hg–O bond lengths are 2.13 Å. There are two inequivalent C3+ sites. In the first C3+ site, C3+ is bonded in a bent 120 degrees geometry to two O2- atoms. There is one shorter (1.24 Å) and one longer (1.30 Å) C–O bond length. In the second C3+ site, C3+ is bonded in a bent 120 degrees geometry to two O2- atoms. There is one shorter (1.24 Å) and one longer (1.30 Å) C–O bond length. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C3+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C3+ atom. In the third O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Hg2+ and one C3+ atom. In the fourth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Hg2+ and one C3+ atom.