Appended Lewis Acids Enable Dioxygen Reactivity and Catalytic Oxidations with Ni(II)
Daniel M. Beagan,
Carolina Rivera,
Nathaniel K. Szymczak
Abstract:We disclose a suite of Ni(II) complexes featuring secondary sphere Lewis acids of varied Lewis acidity and tether lengths. Several of these complexes feature atypical behavior of Ni(II): reactivity with O 2 that occurs only in the presence of a tethered Lewis acid. In situ UV−vis spectroscopy revealed that, although adducts are stable at −40 °C, complexes containing 9borabicyclo[3.3.1]nonane (9-BBN) Lewis acids underwent irreversible oxidative deborylation when warmed to room temperature. We computationally an… Show more
Nickel coordination compounds featuring Ni–O bonds are key structural motifs in both bioinorganic and synthetic chemistries. They serve as precursors for organic substrate oxidation and are commonly invoked intermediates in...
Nickel coordination compounds featuring Ni–O bonds are key structural motifs in both bioinorganic and synthetic chemistries. They serve as precursors for organic substrate oxidation and are commonly invoked intermediates in...
An unusual example of a potassium capped terminal cobalt oxido complex has been isolated and crystallographically characterized. The synthesis of [tBu,TolDHP]CoOK proceeds from a previously reported parent compound, [tBu,TolDHP]CoOH via...
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