Document is current

CROSSCHECK

: This document is CrossCheck deposited

COPYRIGHT AND LICENSING

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

OPEN ACCESS: The accepted version of this article will be made freely available after a 12 month embargo period

PUBLICATION HISTORY

: Received 2 October 2014; Accepted 7 November 2014; Accepted Manuscript published 7 November 2014; Version of Record published 27 November 2014