DOI: 10.17188/1284775
title: Materials Data on K4PH5Se3O16 by Materials Project

description: K4PH5Se3O16 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are four inequivalent K1+ sites. In the first K1+ site, K1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of K–O bond distances ranging from 2.70–2.97 Å. In the second K1+ site, K1+ is bonded in a 9-coordinate geometry to one H1+ and eight O2- atoms. The K–H bond length is 2.85 Å. There are a spread of K–O bond distances ranging from 2.73–3.07 Å. In the third K1+ site, K1+ is bonded in a 9-coordinate geometry to one H1+ and eight O2- atoms. The K–H bond length is 2.85 Å. There are a spread of K–O bond distances ranging from 2.77–3.03 Å. In the fourth K1+ site, K1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of K–O bond distances ranging from 2.69–2.98 Å. P5+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of P–O bond distances ranging from 1.50–1.58 Å. There are five 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 (1.57 Å) H–O bond length. In the second H1+ site, H1+ is bonded in a distorted linear geometry to one K1+ and two O2- atoms. There is one shorter (1.04 Å) and one longer (1.51 Å) H–O bond length. In the third H1+ site, H1+ is bonded in a 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 H1+ site, H1+ is bonded in a distorted linear geometry to one K1+ and two O2- atoms. There is one shorter (1.03 Å) and one longer (1.53 Å) H–O bond length. In the fifth H1+ site, H1+ is bonded in a linear geometry to two O2- atoms. There is one shorter (1.03 Å) and one longer (1.60 Å) H–O bond length. There are three inequivalent Se6+ sites. In the first Se6+ site, Se6+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of Se–O bond distances ranging from 1.65–1.77 Å. In the second Se6+ site, Se6+ is bonded in a tetrahedral geometry to four O2- atoms. There is one shorter (1.67 Å) and three longer (1.68 Å) Se–O bond length. In the third Se6+ site, Se6+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of Se–O bond distances ranging from 1.65–1.77 Å. There are sixteen inequivalent O2- sites. In the first O2- site, O2- is bonded in a 1-coordinate geometry to three K1+ and one Se6+ atom. In the second O2- site, O2- is bonded in a 1-coordinate geometry to two K1+ and one Se6+ atom. In the third O2- site, O2- is bonded in a 1-coordinate geometry to one K1+, one H1+, and one Se6+ atom. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to two K1+ and one Se6+ atom. In the fifth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two K1+, one H1+, and one Se6+ atom. In the sixth O2- site, O2- is bonded in a 2-coordinate geometry to one K1+, one H1+, and one Se6+ atom. In the seventh O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two K1+, one P5+, and one H1+ atom. In the eighth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one K1+, one P5+, and one H1+ atom. In the ninth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one K1+, one H1+, and one Se6+ atom. In the tenth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two K1+, one H1+, and one Se6+ atom. In the eleventh O2- site, O2- is bonded in a 2-coordinate geometry to one K1+, one P5+, and one H1+ atom. In the twelfth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two K1+, one P5+, and one H1+ atom. In the thirteenth O2- site, O2- is bonded in a 3-coordinate geometry to two K1+ and one Se6+ atom. In the fourteenth O2- site, O2- is bonded in a 1-coordinate geometry to one K1+, one H1+, and one Se6+ atom. In the fifteenth O2- site, O2- is bonded in a 1-coordinate geometry to two K1+ and one Se6+ atom. In the sixteenth O2- site, O2- is bonded in a 1-coordinate geometry to three K1+ and one Se6+ atom.