title: Hydrogen Peroxide Coordination to Cobalt(II) Facilitated by Second-Sphere Hydrogen Bonding.
abstract: M(H2 O2 ) adducts have been postulated as intermediates in biological and industrial processes; however, only one observable M(H2 O2 ) adduct has been reported, where M is redox-inactive zinc. Herein, direct solution-phase detection of an M(H2 O2 ) adduct with a redox-active metal, cobalt(II), is described. This Co(II) (H2 O2 ) compound is made observable by incorporating second-sphere hydrogen-bonding interactions between bound H2 O2 and the supporting ligand, a trianionic trisulfonamido ligand. Thermodynamics of H2 O2 binding and decay kinetics of the Co(II) (H2 O2 ) species are described, as well as the reaction of this Co(II) (H2 O2 ) species with Group 2 cations.
authors: Department of Chemistry, Emory University, 1515 Dickey Dr., Atlanta, GA, 30322, USA.
authors: Christian M
authors: CM
authors: Wallen
authors: Department of Structure Analysis, Institute of Physics of the AS CR, Prague, Czechia.
authors: Lukáš
authors: L
authors: Palatinus
authors: Department of Chemistry, Emory University, 1515 Dickey Dr., Atlanta, GA, 30322, USA.
authors: John
authors: J
authors: Bacsa
authors: Department of Chemistry, Emory University, 1515 Dickey Dr., Atlanta, GA, 30322, USA. scarborough@emory.edu.
authors: Christopher C
authors: 0000-0001-7714-1643
authors: CC
authors: Scarborough
keywords: cobalt; hydrogen bonds; peroxides; peroxido ligands; second-sphere interactions