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Materials Data on HoP2(HO2)5 by Materials Project

(HoP2H5O9)2O2 crystallizes in the triclinic P-1 space group. The structure is three-dimensional and consists of one hydrogen peroxide molecule and one HoP2H5O9 framework. In the HoP2H5O9 framework, Ho is bonded in a 8-coordinate geometry to eight O atoms. There are a spread of Ho–O bond distances ranging from 2.26–2.57 Å. There are two inequivalent P sites. In the first P site, P is bonded to four O atoms to form corner-sharing PO4 tetrahedra. There are a spread of P–O bond distances ranging from 1.51–1.62 Å. In the second P site, P is bonded to four O atoms to form corner-sharing PO4 tetrahedra. There are a spread of P–O bond distances ranging from 1.51–1.62 Å. There are five inequivalent H sites. In the first H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 0.98 Å. In the second H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 0.99 Å. In the third H site, H is bonded in a distorted linear geometry to two O atoms. There is one shorter (1.01 Å) and one longer (1.66 Å) H–O bond length. In the fourth H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 0.97 Å. In the fifth H site, H is bonded in a single-bond geometry to one O atom. The H–O bond length is 0.99 Å. There are nine inequivalent O sites. In the first O site, O is bonded in a distorted bent 120 degrees geometry to one P and one H atom. In the second O site, O is bonded in a distorted water-like geometry to one Ho and two H atoms. In the third O site, O is bonded in a 2-coordinate geometry to two equivalent Ho and one P atom. In the fourth O site, O is bonded in a bent 150 degrees geometry to one Ho and one P atom. In the fifth O site, O is bonded in a bent 120 degrees geometry to one P and one H atom. In the sixth O site, O is bonded in a distorted water-like geometry to one Ho and two H atoms. In the seventh O site, O is bonded in a bent 150 degrees geometry to one Ho and one P atom. In the eighth O site, O is bonded in a 1-coordinate geometry to two equivalent Ho and one P atom. In the ninth O site, O is bonded in a bent 120 degrees geometry to two P atoms.

36 MATERIALS SCIENCE↗

Materials Data on HoP2H7O10 by Materials Project

HoP2H7O10 crystallizes in the orthorhombic Pnna space group. The structure is three-dimensional. Ho3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ho–O bond distances ranging from 2.27–2.49 Å. P5+ is bonded in a trigonal non-coplanar geometry to three O2- atoms. There are a spread of P–O bond distances ranging from 1.52–1.55 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 0.97 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 bent 150 degrees geometry to two equivalent O2- atoms. Both H–O bond lengths are 1.20 Å. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 150 degrees geometry to one Ho3+ and one P5+ atom. In the second O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Ho3+ and one P5+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to one Ho3+ and one H1+ atom. In the fourth O2- site, O2- is bonded in a bent 120 degrees geometry to one P5+ and one H1+ atom. In the fifth O2- site, O2- is bonded in a water-like geometry to one Ho3+ and two H1+ atoms.

36 MATERIALS SCIENCE↗