Materials Data on Sr(NO5)2 by Materials Project

Abstract

Sr(NO4)2O2 crystallizes in the monoclinic C2/c space group. The structure is two-dimensional and consists of four hydrogen peroxide molecules and two Sr(NO4)2 sheets oriented in the (0, 1, 0) direction. In each Sr(NO4)2 sheet, Sr is bonded in a 8-coordinate geometry to eight O atoms. There are a spread of Sr–O bond distances ranging from 2.57–3.13 Å. N is bonded in a trigonal planar geometry to three O atoms. There are a spread of N–O bond distances ranging from 1.22–1.32 Å. There are four inequivalent O sites. In the first O site, O is bonded in a distorted water-like geometry to one Sr and one N atom. In the second O site, O is bonded in a 1-coordinate geometry to two equivalent Sr and one N atom. In the third O site, O is bonded in a single-bond geometry to one N atom. In the fourth O site, O is bonded in a bent 120 degrees geometry to one Sr and one O atom. The O–O bond length is 1.23 Å.