Materials Data on ZnH8(CO2)4 by Materials Project

Abstract

ZnH8(CO3)2(CO)2 crystallizes in the monoclinic C2/c space group. The structure is zero-dimensional and consists of eight formaldehyde molecules and four ZnH8(CO3)2 clusters. In each ZnH8(CO3)2 cluster, Zn2+ is bonded in an octahedral geometry to six O2- atoms. There are four shorter (2.10 Å) and two longer (2.16 Å) Zn–O bond lengths. C+1.50+ is bonded in a single-bond geometry to one O2- atom. The C–O bond length is 1.27 Å. There are four inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. In the second H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. In the third H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 1.00 Å. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to one Zn2+ and two H1+ atoms. In the second O2- site, O2- is bonded in a distorted water-like geometry to one Zn2+ and two H1+ atoms. In the third O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Zn2+ and one C+1.50+ atom.