Materials Data on Na2Zn(HO)4 by Materials Project
Na2Zn(OH)4 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are two inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded in a 6-coordinate geometry to one H1+ and five O2- atoms. The Na–H bond length is 2.41 Å. There are a spread of Na–O bond distances ranging from 2.30–2.47 Å. In the second Na1+ site, Na1+ is bonded in a 7-coordinate geometry to one H1+ and six O2- atoms. The Na–H bond length is 2.42 Å. There are a spread of Na–O bond distances ranging from 2.31–2.65 Å. Zn2+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of Zn–O bond distances ranging from 1.96–2.05 Å. There are four inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one Na1+ and 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. In the third H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.97 Å. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one Na1+ and one O2- atom. The H–O bond length is 0.97 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to three Na1+, one Zn2+, and one H1+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to three Na1+, one Zn2+, and one H1+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to three Na1+, one Zn2+, and one H1+ atom. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to two Na1+, one Zn2+, and one H1+ atom.