Materials Data on P4Se5 by Materials Project
P4Se5 is beta-like structured and crystallizes in the orthorhombic Pna2_1 space group. The structure is zero-dimensional and consists of four P4Se5 clusters. there are four inequivalent P+2.50+ sites. In the first P+2.50+ site, P+2.50+ is bonded in a single-bond geometry to one Se2- atom. The P–Se bond length is 2.23 Å. In the second P+2.50+ site, P+2.50+ is bonded in a water-like geometry to two Se2- atoms. There are one shorter (2.30 Å) and one longer (2.33 Å) P–Se bond lengths. In the third P+2.50+ site, P+2.50+ is bonded in a trigonal non-coplanar geometry to three Se2- atoms. There are one shorter (2.14 Å) and two longer (2.30 Å) P–Se bond lengths. In the fourth P+2.50+ site, P+2.50+ is bonded in a trigonal non-coplanar geometry to three Se2- atoms. There are a spread of P–Se bond distances ranging from 2.28–2.32 Å. There are five inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a single-bond geometry to one P+2.50+ atom. In the second Se2- site, Se2- is bonded in a water-like geometry to two P+2.50+ atoms. In the third Se2- site, Se2- is bonded in a water-like geometry to two P+2.50+ atoms. In the fourth Se2- site, Se2- is bonded in a water-like geometry to two P+2.50+ atoms. In the fifth Se2- site, Se2- is bonded in an L-shaped geometry to two P+2.50+ atoms.