Lew, Maria JH; Kelber, Jacob A; Van Vleet, Mary J; Johnson, Adam R; Jarvo, Elizabeth R; Williams, Nancy SB

DOI:

Abstract

A strong π-donor, weak σ-donor pyridonate pincer complex of is reported, a rare but important electronic ligand structure for promoting in late transition metals. Protonation of the complex 2,6-bis(diethylaminomethyl)-4- pyridonate platinum(II) methyl occurs initially at oxygen, with a second proton equivalent affording methane. Methyl triflate similarly methylates initially with oxygen and then . A computational study indicates that this terdentate pyridonate pincer greatly enhances the ability of late transition metals to cleave the C-H bond of methane compared to a classic NCN pincer. With bound to this π-donor pincer, the oxidative addition of methane is computationally predicted to be thermodynamically favorable.

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