Materials Data on Co(HO)2 by Materials Project

Abstract

Co(OH)2 crystallizes in the triclinic P1 space group. The structure is two-dimensional and consists of one Co(OH)2 sheet oriented in the (0, 0, 1) direction. Co2+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Co–O bond distances ranging from 2.04–2.12 Å. There are two 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 0.98 Å. In the second H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.97 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to three equivalent Co2+ and one H1+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Co2+ and one H1+ atom.