Corrigendum: Iodine–Iodine Bonding makes Tetra(diiodine)chloride, [Cl(I2)4]−, Planar. Issue 21 (19th May 2014) - Walbaum, Christine; Richter, Mark; Sachs, Ulf; Pantenburg, Ingo; Riedel, Sebastian; Mudring, Anja‐Verena; Meyer, Gerd