Materials Data on FeWCl5 by Materials Project

Abstract

WFeCl5 crystallizes in the monoclinic C2/c space group. The structure is two-dimensional and consists of two WFeCl5 sheets oriented in the (0, 0, 1) direction. there are two inequivalent W2+ sites. In the first W2+ site, W2+ is bonded to six Cl1- atoms to form WCl6 octahedra that share an edgeedge with one WCl6 octahedra and edges with three FeCl6 octahedra. There are a spread of W–Cl bond distances ranging from 2.38–2.54 Å. In the second W2+ site, W2+ is bonded to six Cl1- atoms to form WCl6 octahedra that share an edgeedge with one WCl6 octahedra and edges with three FeCl6 octahedra. There are a spread of W–Cl bond distances ranging from 2.37–2.54 Å. There are two inequivalent Fe3+ sites. In the first Fe3+ site, Fe3+ is bonded to six Cl1- atoms to form FeCl6 octahedra that share edges with two equivalent FeCl6 octahedra and edges with three WCl6 octahedra. There are a spread of Fe–Cl bond distances ranging from 2.42–2.53 Å. In the second Fe3+ site, Fe3+ is bonded to six Cl1- atoms to form FeCl6 octahedra that share edges with two equivalent FeCl6 octahedra and edges with three WCl6 octahedra. There are a spread of Fe–Cl bond distances ranging from 2.40–2.54 Å. There are five inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a 3-coordinate geometry to one W2+ and two Fe3+ atoms. In the second Cl1- site, Cl1- is bonded in a 2-coordinate geometry to two W2+ atoms. In the third Cl1- site, Cl1- is bonded in a water-like geometry to one W2+ and one Fe3+ atom. In the fourth Cl1- site, Cl1- is bonded in a water-like geometry to one W2+ and one Fe3+ atom. In the fifth Cl1- site, Cl1- is bonded in a 3-coordinate geometry to one W2+ and two Fe3+ atoms.