Materials Data on K2Pd3Se4 by Materials Project
K2Pd3Se4 crystallizes in the orthorhombic Fddd space group. The structure is three-dimensional. K1+ is bonded in a 8-coordinate geometry to eight equivalent Se2- atoms. There are a spread of K–Se bond distances ranging from 3.61–3.76 Å. There are two inequivalent Pd2+ sites. In the first Pd2+ site, Pd2+ is bonded in a square co-planar geometry to four equivalent Se2- atoms. There are two shorter (2.48 Å) and two longer (2.50 Å) Pd–Se bond lengths. In the second Pd2+ site, Pd2+ is bonded in a square co-planar geometry to four equivalent Se2- atoms. All Pd–Se bond lengths are 2.49 Å. Se2- is bonded in a 7-coordinate geometry to four equivalent K1+ and three Pd2+ atoms.
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