Activation of Water, Ammonia, and Other Small Molecules by PCcarbeneP Nickel Pincer Complexes
Journal of the American Chemical Society2013Vol. 135(32), pp. 11776–11779
Citations Over TimeTop 1% of 2013 papers
Abstract
Nickel complexes of a PC(carbene)P pincer ligand framework are described. Dehydrobromination of the precursor (PC(sp)(3)P)NiBr in the presence of a donor (PPh3 or NC(t)Bu) leads to the title complexes, which feature a rare nickel-carbene linkage as the pincer ligand anchor point. This strongly donating, nucleophilic carbene center engages in a variety of E-H bond activations (E = H, C, N, O), some of which are reversible. This represents a new mode of bond activation by ligand cooperativity in nickel pincer complexes.
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