Hydrogen Peroxide Coordination to Cobalt(II) Facilitated by Second‐Sphere Hydrogen Bonding |
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| Authors: | Christian M. Wallen Prof. Dr. Lukáš Palatinus Dr. John Bacsa Prof. Dr. Christopher C. Scarborough |
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| Affiliation: | 1. Department of Chemistry, Emory University, Atlanta, GA, USA;2. Department of Structure Analysis, Institute of Physics of the AS CR, Prague, Czechia |
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| Abstract: | M(H2O2) adducts have been postulated as intermediates in biological and industrial processes; however, only one observable M(H2O2) adduct has been reported, where M is redox‐inactive zinc. Herein, direct solution‐phase detection of an M(H2O2) adduct with a redox‐active metal, cobalt(II), is described. This CoII(H2O2) compound is made observable by incorporating second‐sphere hydrogen‐bonding interactions between bound H2O2 and the supporting ligand, a trianionic trisulfonamido ligand. Thermodynamics of H2O2 binding and decay kinetics of the CoII(H2O2) species are described, as well as the reaction of this CoII(H2O2) species with Group 2 cations. |
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| Keywords: | cobalt hydrogen bonds peroxides peroxido ligands second-sphere interactions |
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