Schax F1, Suhr S, Bill E, Braun B, Herwig C, Limberg C.
Angew Chem Int Ed Engl. 2015 Jan 19;54(4):1352-6. doi: 10.1002/anie.201409294. Epub 2014 Dec 4.The reaction of 1,1,3,3-tetraphenyl-1,3-disiloxandiol (LH2) with n-butyllithium and CrCl2 results in a mononuclear chromium(II) complex (1) that further reacts with O2 at low temperatures to yield a mononuclear chromium(III) superoxide complex [L2CrO2(THF)][Li2(THF)3] (2). The crystal structure revealed that the chromium superoxido entity is stabilized by the coordination to an adjacent lithium cation. Read More