Materials Data on PCl5 by Materials Project

Abstract

PCl5 is Iron carbide-like structured and crystallizes in the monoclinic C2/m space group. The structure is two-dimensional and consists of two PCl6 clusters and one P2Cl9 sheet oriented in the (0, 0, 1) direction. In each PCl6 cluster, P5+ is bonded in an octahedral geometry to six Cl1- atoms. All P–Cl bond lengths are 2.17 Å. There are two inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one P5+ atom. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one P5+ atom. In the P2Cl9 sheet, P5+ is bonded in a tetrahedral geometry to four Cl1- atoms. All P–Cl bond lengths are 1.97 Å. There are four inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one P5+ atom. In the second Cl1- site, Cl1- is bonded in a single-bond geometry to one P5+ and one Cl1- atom. The Cl–Cl bond length is 3.36 Å. In the third Cl1- site, Cl1- is bonded in a single-bond geometry to one P5+ and one Cl1- atom. The Cl–Cl bond length is 3.50 Å. In the fourth Cl1- site, Cl1- is bonded in a 6-coordinate geometry to six Cl1- atoms.