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IDENTIFIERS

: Florian Rehfeldt (ResearcherID)

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 12 August 2014; Accepted 15 October 2014; Accepted Manuscript published 15 October 2014; Advance Article published 14 November 2014; Version of Record published 10 December 2014