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Materials Data on PH8C2NO4 by Materials Project

CH3NH2CPH3O4 crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of four methylammonium molecules and two CPH3O4 clusters. In each CPH3O4 cluster, C1- is bonded in a distorted trigonal non-coplanar geometry to two H1+ and one O2- atom. Both C–H bond lengths are 1.10 Å. The C–O bond length is 1.44 Å. P5+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of P–O bond distances ranging from 1.51–1.62 Å. There are three inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one C1- atom. In the second H1+ site, H1+ is bonded in a linear geometry to two O2- atoms. There is one shorter (1.03 Å) and one longer (1.54 Å) H–O bond length. In the third H1+ site, H1+ is bonded in a single-bond geometry to one C1- atom. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to one P5+ atom. In the second O2- site, O2- is bonded in a bent 120 degrees geometry to one C1- and one P5+ atom. In the third O2- site, O2- is bonded in a bent 120 degrees geometry to one P5+ and one H1+ atom. In the fourth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one P5+ and one H1+ atom.

36 MATERIALS SCIENCE↗

Materials Data on PH10C2NO4 by Materials Project

(CH3)2NH2H2PO4 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional and consists of four dimethylazanium molecules and one H2PO4 framework. In the H2PO4 framework, P5+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of P–O bond distances ranging from 1.53–1.60 Å. There are three inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a linear geometry to two equivalent O2- atoms. Both H–O bond lengths are 1.20 Å. In the second H1+ site, H1+ is bonded in a distorted linear geometry to two O2- atoms. There is one shorter (1.02 Å) and one longer (1.61 Å) H–O bond length. In the third H1+ site, H1+ is bonded in a linear geometry to two equivalent O2- atoms. Both H–O bond lengths are 1.21 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 120 degrees geometry to one P5+ and one H1+ 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 2-coordinate geometry to one P5+ 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.

36 MATERIALS SCIENCE↗

Materials Data on PH9C(NO)4 by Materials Project

CN4H7H2PO4 crystallizes in the triclinic P-1 space group. The structure is two-dimensional and consists of two aminoguanidinium molecules and one H2PO4 sheet oriented in the (0, 0, 1) direction. In the H2PO4 sheet, 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. There are three inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a linear geometry to two equivalent O2- atoms. Both H–O bond lengths are 1.21 Å. In the second H1+ site, H1+ is bonded in a linear geometry to two O2- atoms. There is one shorter (1.04 Å) and one longer (1.49 Å) H–O bond length. In the third H1+ site, H1+ is bonded in a linear geometry to two equivalent O2- atoms. Both H–O bond lengths are 1.21 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 120 degrees geometry to one P5+ and one H1+ 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 bent 120 degrees geometry to one P5+ 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.

36 MATERIALS SCIENCE↗

Materials Data on PH9C2N4O5 by Materials Project

C2N4H7OH2PO4 crystallizes in the triclinic P-1 space group. The structure is one-dimensional and consists of two ureidodiaminomethylium molecules and one H2PO4 ribbon oriented in the (0, 0, 1) direction. In the H2PO4 ribbon, P5+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of P–O bond distances ranging from 1.53–1.60 Å. There are two inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a linear geometry to two O2- atoms. There is one shorter (1.03 Å) and one longer (1.58 Å) H–O bond length. In the second H1+ site, H1+ is bonded in a linear geometry to two O2- atoms. There is one shorter (1.02 Å) and one longer (1.58 Å) H–O bond length. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to one P5+ and one H1+ 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 bent 120 degrees geometry to one P5+ 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.

36 MATERIALS SCIENCE↗

Materials Data on PH11C(NO2)2 by Materials Project

CPH9(NO2)2H2 crystallizes in the monoclinic P2_1/c space group. The structure is one-dimensional and consists of four hydrogen molecules and two CPH9(NO2)2 ribbons oriented in the (1, 0, 0) direction. In each CPH9(NO2)2 ribbon, C2- is bonded in a distorted trigonal non-coplanar geometry to one N3- and two H1+ atoms. The C–N bond length is 1.49 Å. Both C–H bond lengths are 1.09 Å. P5+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of P–O bond distances ranging from 1.54–1.60 Å. There are two inequivalent N3- sites. In the first N3- site, N3- is bonded in a trigonal planar geometry to three H1+ atoms. There are a spread of N–H bond distances ranging from 1.04–1.06 Å. In the second N3- site, N3- is bonded in a tetrahedral geometry to one C2- and three H1+ atoms. There is one shorter (1.05 Å) and two longer (1.06 Å) N–H bond length. There are nine inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a distorted single-bond geometry to two O2- atoms. There is one shorter (1.01 Å) and one longer (1.67 Å) H–O bond length. In the second H1+ site, H1+ is bonded in a distorted single-bond geometry to one N3- and one O2- atom. The H–O bond length is 1.69 Å. In the third H1+ site, H1+ is bonded in a single-bond geometry to one C2- atom. In the fourth H1+ site, H1+ is bonded in a distorted linear geometry to one N3- and one O2- atom. The H–O bond length is 1.63 Å. In the fifth H1+ site, H1+ is bonded in a single-bond geometry to one C2- atom. In the sixth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the seventh H1+ site, H1+ is bonded in a single-bond geometry to one N3- and one O2- atom. The H–O bond length is 1.72 Å. In the eighth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the ninth H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to one P5+ atom. In the second O2- site, O2- is bonded in a 3-coordinate geometry to one P5+ and two H1+ atoms. In the third O2- site, O2- is bonded in a 3-coordinate geometry to one P5+ and two H1+ atoms. In the fourth O2- site, O2- is bonded in a bent 120 degrees geometry to one P5+ and one H1+ atom.

36 MATERIALS SCIENCE↗

Materials Data on PH18C6N3O by Materials Project

((CH3)2N)3PO is beta Sn-like structured and crystallizes in the monoclinic P2_1/m space group. The structure is zero-dimensional and consists of two hexamethylphosphoramide molecules. there are three inequivalent C2- sites. In the first C2- site, C2- is bonded to one N3- and three H1+ atoms to form CH3N tetrahedra that share a cornercorner with one CH3N tetrahedra and a cornercorner with one PN3O tetrahedra. The C–N bond length is 1.46 Å. There are a spread of C–H bond distances ranging from 1.09–1.11 Å. In the second C2- site, C2- is bonded to one N3- and three H1+ atoms to form CH3N tetrahedra that share a cornercorner with one CH3N tetrahedra and a cornercorner with one PN3O tetrahedra. The C–N bond length is 1.46 Å. There is two shorter (1.10 Å) and one longer (1.11 Å) C–H bond length. In the third C2- site, C2- is bonded to one N3- and three H1+ atoms to form CH3N tetrahedra that share a cornercorner with one CH3N tetrahedra and a cornercorner with one PN3O tetrahedra. The C–N bond length is 1.47 Å. There is two shorter (1.10 Å) and one longer (1.11 Å) C–H bond length. P5+ is bonded to three N3- and one O2- atom to form PN3O tetrahedra that share corners with six CH3N tetrahedra. All P–N bond lengths are 1.68 Å. The P–O bond length is 1.49 Å. There are two inequivalent N3- sites. In the first N3- site, N3- is bonded in a trigonal planar geometry to two C2- and one P5+ atom. In the second N3- site, N3- is bonded in a trigonal planar geometry to two equivalent C2- and one P5+ atom. There are nine inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one C2- atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one C2- atom. In the third H1+ site, H1+ is bonded in a single-bond geometry to one C2- atom. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to one C2- atom. In the fifth H1+ site, H1+ is bonded in a single-bond geometry to one C2- atom. In the sixth H1+ site, H1+ is bonded in a single-bond geometry to one C2- atom. In the seventh H1+ site, H1+ is bonded in a single-bond geometry to one C2- atom. In the eighth H1+ site, H1+ is bonded in a single-bond geometry to one C2- atom. In the ninth H1+ site, H1+ is bonded in a single-bond geometry to one C2- atom. O2- is bonded in a single-bond geometry to one P5+ atom.

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