Materials Data on K2PdO4 by Materials Project

K2PdO4 crystallizes in the monoclinic P2_1 space group. The structure is three-dimensional. there are two inequivalent K sites. In the first K site, K is bonded in a 7-coordinate geometry to seven O atoms. There are a spread of K–O bond distances ranging from 2.76–2.98 Å. In the second K site, K is bonded in a 8-coordinate geometry to eight O atoms. There are a spread of K–O bond distances ranging from 2.73–3.23 Å. Pd is bonded in a rectangular see-saw-like geometry to four O atoms. There are a spread of Pd–O bond distances ranging from 1.88–1.92 Å. There are four inequivalent O sites. In the first O site, O is bonded in a 1-coordinate geometry to four K and one Pd atom. In the second O site, O is bonded to four K and one Pd atom to form distorted corner-sharing OK4Pd trigonal bipyramids. In the third O site, O is bonded in a 1-coordinate geometry to four K and one Pd atom. In the fourth O site, O is bonded in a 1-coordinate geometry to three K and one Pd atom.