Materials Data on PdSe by Materials Project

Abstract

PdSe crystallizes in the tetragonal P4_2/mbc space group. The structure is three-dimensional. there are three inequivalent Pd2+ sites. In the first Pd2+ site, Pd2+ is bonded in a square co-planar geometry to four Se2- atoms. There are two shorter (2.45 Å) and two longer (2.49 Å) Pd–Se bond lengths. In the second Pd2+ site, Pd2+ is bonded in a rectangular see-saw-like geometry to four equivalent Se2- atoms. There are two shorter (2.49 Å) and two longer (2.52 Å) Pd–Se bond lengths. In the third Pd2+ site, Pd2+ is bonded in a rectangular see-saw-like geometry to four Se2- atoms. All Pd–Se bond lengths are 2.48 Å. There are two inequivalent Se2- sites. In the first Se2- site, Se2- is bonded to four Pd2+ atoms to form a mixture of distorted edge and corner-sharing SePd4 tetrahedra. In the second Se2- site, Se2- is bonded to four Pd2+ atoms to form a mixture of distorted edge and corner-sharing SePd4 tetrahedra.