Materials Data on Eu(HoS2)2 by Materials Project

Abstract

Eu(HoS2)2 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent Ho3+ sites. In the first Ho3+ site, Ho3+ is bonded to six S2- atoms to form a mixture of corner and edge-sharing HoS6 octahedra. The corner-sharing octahedra tilt angles range from 48–65°. There are a spread of Ho–S bond distances ranging from 2.69–2.75 Å. In the second Ho3+ site, Ho3+ is bonded to six S2- atoms to form a mixture of corner and edge-sharing HoS6 octahedra. The corner-sharing octahedra tilt angles range from 48–65°. There are a spread of Ho–S bond distances ranging from 2.67–2.76 Å. Eu2+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of Eu–S bond distances ranging from 3.04–3.29 Å. There are four inequivalent S2- sites. In the first S2- site, S2- is bonded in a 5-coordinate geometry to three Ho3+ and two equivalent Eu2+ atoms. In the second S2- site, S2- is bonded to three equivalent Ho3+ and two equivalent Eu2+ atoms to form a mixture of distorted corner and edge-sharing SEu2Ho3 square pyramids. In the third S2- site, S2- is bonded in a 5-coordinate geometry to three Ho3+ and two equivalent Eu2+ atoms. In the fourth S2- site, S2- is bonded to three equivalent Ho3+ and two equivalent Eu2+ atoms to form a mixture of distorted corner and edge-sharing SEu2Ho3 trigonal bipyramids.