Materials Data on K2P3 by Materials Project

Abstract

K2P3 crystallizes in the orthorhombic Fmmm space group. The structure is three-dimensional. there are two inequivalent K1+ sites. In the first K1+ site, K1+ is bonded to eight P+0.67- atoms to form a mixture of distorted edge, face, and corner-sharing KP8 hexagonal bipyramids. There are four shorter (3.47 Å) and four longer (3.51 Å) K–P bond lengths. In the second K1+ site, K1+ is bonded in a 10-coordinate geometry to ten P+0.67- atoms. There are a spread of K–P bond distances ranging from 3.36–3.46 Å. There are two inequivalent P+0.67- sites. In the first P+0.67- site, P+0.67- is bonded in a 8-coordinate geometry to six K1+ and two P+0.67- atoms. Both P–P bond lengths are 2.17 Å. In the second P+0.67- site, P+0.67- is bonded in a 8-coordinate geometry to six K1+ and two equivalent P+0.67- atoms.