Materials Data on Np(SO6)2 by Materials Project

Abstract

Np(SO6)2 is Silicon tetrafluoride-derived structured and crystallizes in the orthorhombic Pnma space group. The structure is zero-dimensional and consists of four Np(SO6)2 clusters. Np is bonded in a 4-coordinate geometry to six O atoms. There are a spread of Np–O bond distances ranging from 1.77–2.43 Å. S is bonded in a tetrahedral geometry to four O atoms. There are a spread of S–O bond distances ranging from 1.47–1.51 Å. There are seven inequivalent O sites. In the first O site, O is bonded in a single-bond geometry to one S atom. In the second O site, O is bonded in a single-bond geometry to one Np atom. In the third O site, O is bonded in a single-bond geometry to one S atom. In the fourth O site, O is bonded in a distorted bent 150 degrees geometry to one Np and one S atom. In the fifth O site, O is bonded in a single-bond geometry to one Np atom. In the sixth O site, O is bonded in a single-bond geometry to one Np atom. In the seventh O site, O is bonded in a single-bond geometry to one S atom.