Another of the 18 Gold for Gold vouchers that the Royal Society of Chemistry has given to the University of Cambridge has been used to make the following article immediately open access:
The derivative discontinuity of the exchange–correlation functional, Paula Mori-Sánchez and Aron J. Cohen. Phys. Chem. Chem. Phys., 2014. Advance Article. DOI:10.1039/C4CP01170H, Perspective. http://pubs.rsc.org/en/content/articlelanding/2014/cp/c4cp01170h#!divAbstract
To find out more about the Gold for Gold initiative, please see a previous blog post here: https://cambridgechemlib.wordpress.com/2014/03/14/gold-for-gold-is-back/.