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CROSSCHECK

: This document is CrossCheck deposited

RELATED DATA

: Supplementary Information

: Crystal Structure Data

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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 2 July 2014; Accepted 31 August 2014; Accepted Manuscript published 3 September 2014; Advance Article published 16 September 2014; Version of Record published 2 October 2014