Materials Data on U(SbO3)2 by Materials Project

Abstract

U(SbO3)2 crystallizes in the monoclinic C2/m space group. The structure is two-dimensional and consists of one U(SbO3)2 sheet oriented in the (0, 0, 1) direction. U6+ is bonded in a 2-coordinate geometry to six O2- atoms. There are two shorter (1.84 Å) and four longer (2.37 Å) U–O bond lengths. Sb3+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of Sb–O bond distances ranging from 1.99–2.17 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one U6+ atom. In the second O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to three equivalent Sb3+ atoms. In the third O2- site, O2- is bonded in a trigonal planar geometry to two equivalent U6+ and one Sb3+ atom.