Materials Data on CuP2(H2O3)2 by Materials Project
CuP2(H2O3)2 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Cu2+ is bonded in a distorted see-saw-like geometry to four O2- atoms. There are a spread of Cu–O bond distances ranging from 1.91–2.26 Å. There are two inequivalent P5+ sites. In the first P5+ site, P5+ is bonded in a distorted tetrahedral geometry to one H and three O2- atoms. The P–H bond length is 1.41 Å. There is two shorter (1.54 Å) and one longer (1.56 Å) P–O bond length. In the second P5+ site, P5+ is bonded in a distorted tetrahedral geometry to one H and three O2- atoms. The P–H bond length is 1.40 Å. There are a spread of P–O bond distances ranging from 1.52–1.57 Å. There are four inequivalent H sites. In the first H site, H is bonded in a single-bond geometry to one P5+ atom. In the second H site, H is bonded in a single-bond geometry to one P5+ atom. In the third H site, H is bonded in a distorted linear geometry to two O2- atoms. There is one shorter (1.04 Å) and one longer (1.52 Å) H–O bond length. In the fourth H site, H 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 six inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 120 degrees geometry to one Cu2+ and one P5+ atom. In the second O2- site, O2- is bonded in a 3-coordinate geometry to one Cu2+, one P5+, and one H atom. In the third O2- site, O2- is bonded in a bent 150 degrees geometry to one Cu2+ and one P5+ atom. In the fourth O2- site, O2- is bonded in a bent 120 degrees geometry to one P5+ and one H atom. In the fifth O2- site, O2- is bonded in a bent 120 degrees geometry to one P5+ and one H atom. In the sixth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Cu2+, one P5+, and one H atom.