Materials Data on SnPHO4 by Materials Project
SnHPO4 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Sn2+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Sn–O bond distances ranging from 2.20–2.67 Å. P5+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of P–O bond distances ranging from 1.53–1.59 Å. H1+ is bonded in a linear geometry to two O2- atoms. There is one shorter (1.03 Å) and one longer (1.55 Å) H–O bond length. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Sn2+ and one P5+ atom. In the second O2- site, O2- is bonded in a bent 120 degrees geometry to one P5+ and one H1+ atom. In the third O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Sn2+, one P5+, and one H1+ atom. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent Sn2+ and one P5+ atom.