Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance work on Wednesday 21st October 2020 from 07:00 AM to 07:00 PM (BST).

During this time our website performance may be temporarily affected. We apologise for any inconvenience this might cause and thank you for your patience.

Issue 36, 2012
Previous Article Next Article

Thorium nanochemistry: the solution structure of the Th(iv)–hydroxo pentamer

Author affiliations


Tetravalent thorium exhibits a strong tendency towards hydrolysis and subsequent polymerization. Polymeric species play a crucial role in understanding thorium solution chemistry, since their presence causes apparent solubility several orders of magnitude higher than predicted by thermodynamic data bases. Although electrospray mass spectrometry (ESI MS) identifies Th(IV) dimers and pentamers unequivocally as dominant species close to the solubility limit, the molecular structure of Th5(OH)y polymers was hitherto unknown. In the present study, X-ray absorption fine structure (XAFS) spectroscopy, high energy X-ray scattering (HEXS) measurements, and quantum chemical calculations are combined to solve the pentamer structure. The most favourable structure is represented by two Th(IV) dimers linked by a central Th(IV) cation through hydroxide bridges.

Graphical abstract: Thorium nanochemistry: the solution structure of the Th(iv)–hydroxo pentamer

Back to tab navigation

Supplementary files

Article information

02 Feb 2012
10 Apr 2012
First published
17 Apr 2012

Dalton Trans., 2012,41, 10941-10947
Article type

Thorium nanochemistry: the solution structure of the Th(IV)–hydroxo pentamer

C. Walther, J. Rothe, B. Schimmelpfennig and M. Fuss, Dalton Trans., 2012, 41, 10941
DOI: 10.1039/C2DT30243H

Social activity

Search articles by author