A new paper has been accepted for publication and is now online on the Chemical Communications website. The article “Unravelling phenomenon of internal rotation in B13+ through chemical bonding analysis” by Gerardo Martínez-Guajardo, Alina P. Sergeeva, Alexander I. Boldyrev, Thomas Heine, Jesus M. Ugalde and Gabriel Merino, can be now accessed at DOI:10.1039/C1CC10821B