Materials Data on U(NO5)2 by Materials Project

Abstract

UNO8NO2 crystallizes in the monoclinic Cm space group. The structure is one-dimensional and consists of two nitrous acid molecules and two UNO8 ribbons oriented in the (0, 1, 0) direction. In each UNO8 ribbon, U is bonded in a distorted see-saw-like geometry to six O atoms. There are a spread of U–O bond distances ranging from 1.83–2.81 Å. N is bonded in a 4-coordinate geometry to four O atoms. There is two shorter (1.19 Å) and two longer (1.98 Å) N–O bond length. There are six inequivalent O sites. In the first O site, O is bonded in a single-bond geometry to one U atom. In the second O site, O is bonded in a single-bond geometry to one U 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 single-bond geometry to one N atom. In the fifth O site, O is bonded in a bent 150 degrees geometry to one U and one O atom. The O–O bond length is 1.23 Å. In the sixth O site, O is bonded in a distorted bent 150 degrees geometry to one U and one N atom.