The University of Southampton
University of Southampton Institutional Repository

Structure of uranium(VI) oxide dihydrate, UO3. 2H(2)O; synthetic meta-schoepite (UO2)(4)O(OH)(6). 5H(2)O

Weller, M. T., Light, M. E. and Gelbrich, T. (2000) Structure of uranium(VI) oxide dihydrate, UO3. 2H(2)O; synthetic meta-schoepite (UO2)(4)O(OH)(6). 5H(2)O Acta Crystallographica Section B - Structural Science, 56, pp. 577-583. (doi:10.1107/S0108768199016559).

Record type: Article


The structure of uranium oxide dihydrate, also known as meta-schoepite (UO2)(4)O(OH)(6). 5H(2)O, has been determined from a synthetic single crystal. The structure, at 150 K, space group Pbcn, lattice constants a = 14.6861 (4), b = 13.9799 (3) and c = 16.7063 (5) Angstrom, consists of layers of stoichiometry (UO2)(4)O(OH)(6), formed from edge-sharing UO7 pentagonal bipyramids, interleaved with hydrogen-bonded water molecules. Three of the layer hydroxyl groups are linked through hydrogen bonding to single water molecules and the three remaining OH units form interactions with water molecules that each act as acceptors in two hydrogen bonds. One of the water molecules in the inter-layer region is disordered over two symmetry-related sites and forms hydrogen-bonded interactions only within the layer and with the uranyl O atoms. The relationship of the structure of meta-schoepite to that of schoepite is discussed in detail.

Full text not available from this repository.

More information

Published date: 1 August 2000
Keywords: crystal-structure, parameters


Local EPrints ID: 18900
PURE UUID: 03db3e22-6206-45de-b550-907e5a19670f

Catalogue record

Date deposited: 03 Jan 2006
Last modified: 17 Jul 2017 16:34

Export record



Author: M. T. Weller
Author: M. E. Light
Author: T. Gelbrich

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton:

ePrints Soton supports OAI 2.0 with a base URL of

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.