Document is current

CROSSCHECK

: This document is CrossCheck deposited

RELATED DATA

: Supplementary Information

COPYRIGHT AND LICENSING

: The Royal Society of Chemistry has an exclusive publication licence for this journal

OPEN ACCESS: This article is freely available. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence (CC BY 3.0)

PUBLICATION HISTORY

: Received 26 June 2014; Accepted 4 July 2014; Accepted Manuscript published 4 July 2014; Advance Article published 14 August 2014; Version of Record published 28 October 2014