Corrigendum: Intact P4 Tetrahedra as Terminal and Bridging Ligands in Neutral Complexes of Manganese. Issue 25 (16th June 2014) - Heinl, Sebastian; Peresypkina, Eugenia V.; Timoshkin, Alexey Y.; Mastrorilli, Piero; Gallo, Vito; Scheer, Manfred