Materials Data on NaSi2Pd3 by Materials Project

Abstract

NaPd3Si2 crystallizes in the orthorhombic Imm2 space group. The structure is three-dimensional. there are two inequivalent Na sites. In the first Na site, Na is bonded in a 12-coordinate geometry to six Pd and six Si atoms. There are four shorter (3.11 Å) and two longer (3.29 Å) Na–Pd bond lengths. There are a spread of Na–Si bond distances ranging from 3.16–3.36 Å. In the second Na site, Na is bonded in a 10-coordinate geometry to eight Pd and four Si atoms. There are a spread of Na–Pd bond distances ranging from 3.14–3.36 Å. There are two shorter (3.18 Å) and two longer (3.43 Å) Na–Si bond lengths. There are two inequivalent Pd sites. In the first Pd site, Pd is bonded in a 6-coordinate geometry to two Na and four Si atoms. There are a spread of Pd–Si bond distances ranging from 2.42–2.56 Å. In the second Pd site, Pd is bonded in a 4-coordinate geometry to three Na and four Si atoms. There are two shorter (2.46 Å) and two longer (2.56 Å) Pd–Si bond lengths. There are two inequivalent Si sites. In the first Si site, Si is bonded in a 9-coordinate geometry to two Na, six Pd, and one Si atom. The Si–Si bond length is 2.61 Å. In the second Si site, Si is bonded in a 10-coordinate geometry to three Na, six Pd, and one Si atom.