Publication Details (including relevant citation information):
C. M. Wallen, L. Palatinus, J. Bacsa, C. C. Scarborough, Angew. Chem. Int. Ed. 2016, 55, 11902.
M(HO) adducts have been postulated as intermediates in biological and industrial processes; however, only one observable M(HO) adduct has been reported, where M is redox-inactive zinc. Herein, direct solution-phase detection of an M(HO) adduct with a redox-active metal, cobalt(II), is described. This Co(HO) compound is made observable by incorporating second-sphere hydrogen-bonding interactions between bound HO and the supporting ligand, a trianionic trisulfonamido ligand. Thermodynamics of HO binding and decay kinetics of the Co(HO) species are described, as well as the reaction of this Co(HO) species with Group 2 cations.