Materials Data on Ba5Os3NO18 by Materials Project

Abstract

Ba5(OsO5)3NO3 crystallizes in the hexagonal P6_3cm space group. The structure is three-dimensional. there are two inequivalent Ba2+ sites. In the first Ba2+ site, Ba2+ is bonded in a 10-coordinate geometry to ten O2- atoms. There are a spread of Ba–O bond distances ranging from 2.69–3.27 Å. In the second Ba2+ site, Ba2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Ba–O bond distances ranging from 2.79–2.88 Å. Os7+ is bonded in a distorted trigonal bipyramidal geometry to five O2- atoms. There are a spread of Os–O bond distances ranging from 1.75–1.89 Å. N5+ is bonded in a trigonal planar geometry to three equivalent O2- atoms. All N–O bond lengths are 1.27 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to three equivalent Ba2+ and one N5+ atom. In the second O2- site, O2- is bonded to three Ba2+ and one Os7+ atom to form a mixture of distorted edge and corner-sharing OBa3Os tetrahedra. In the third O2- site, O2- is bonded in a distorted single-bond geometry to three Ba2+ and one Os7+ atom. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to one Ba2+ and one Os7+ atom.