文摘
The nickel(II) complex [Ni(TpMe2) (SC6H4NO2)] [1a; TpMe2 = hydrotris(3,5-dimethylpyrazol-1-yl)borate] reacts with O2 to form the ligand oxygenation product ArSO2鈥?/sup> in MeCN, and also 1a catalyzes the oxygenation of external substrates such as triphenylphosphine. The reactivity may correlate to the unique quinoid-like resonance structure of the thiophenolate ligand. The structure is stabilized by a p-nitro group and induced by coordination of MeCN.