Materials Data on CdH2(CO2)2 by Materials Project
Cd(HCOO)2 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. Cd2+ is bonded to seven O2- atoms to form distorted edge-sharing CdO7 pentagonal bipyramids. There are a spread of Cd–O bond distances ranging from 2.32–2.65 Å. There are two inequivalent C2+ sites. In the first C2+ site, C2+ is bonded in a trigonal planar geometry to one H1+ and two O2- atoms. The C–H bond length is 1.10 Å. There is one shorter (1.26 Å) and one longer (1.28 Å) C–O bond length. In the second C2+ site, C2+ is bonded in a trigonal planar geometry to one H1+ and two O2- atoms. The C–H bond length is 1.11 Å. Both C–O bond lengths are 1.27 Å. There are two inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one C2+ atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one C2+ atom. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Cd2+ and one C2+ atom. In the second O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Cd2+ and one C2+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Cd2+ and one C2+ atom. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Cd2+ and one C2+ atom.