Materials Data on Rh2Se3 by Materials Project

Rh2Se3 is Corundum-like structured and crystallizes in the orthorhombic Pbcn space group. The structure is three-dimensional. Rh3+ is bonded to six Se2- atoms to form a mixture of corner, edge, and face-sharing RhSe6 octahedra. The corner-sharing octahedra tilt angles range from 49–70°. There are a spread of Rh–Se bond distances ranging from 2.47–2.56 Å. There are two inequivalent Se2- sites. In the first Se2- site, Se2- is bonded to four equivalent Rh3+ atoms to form a mixture of distorted corner and edge-sharing SeRh4 tetrahedra. In the second Se2- site, Se2- is bonded to four equivalent Rh3+ atoms to form a mixture of distorted corner and edge-sharing SeRh4 trigonal pyramids.