Materials Data on BaSi2(NO)2 by Materials Project

Abstract

BaSi2O2N2 crystallizes in the orthorhombic Pbcn space group. The structure is three-dimensional. Ba2+ is bonded in a 8-coordinate geometry to two equivalent N3- and eight equivalent O2- atoms. Both Ba–N bond lengths are 3.33 Å. There are a spread of Ba–O bond distances ranging from 2.79–3.09 Å. Si4+ is bonded to three equivalent N3- and one O2- atom to form corner-sharing SiN3O tetrahedra. There is one shorter (1.75 Å) and two longer (1.76 Å) Si–N bond length. The Si–O bond length is 1.63 Å. N3- is bonded in a trigonal planar geometry to one Ba2+ and three equivalent Si4+ atoms. O2- is bonded in a distorted single-bond geometry to four equivalent Ba2+ and one Si4+ atom.