Attenuation of reactivity by product solvation: Synthesis and molecular structure of [K{(η6-Mes)NC(H)N(Mes)}{(η6-Mes)NHC(H)N(Mes)], the first formamidinate complex of potassium

Abstract

Ambient temperature treatment of the new bulky formamidine (2,4,6-Me3C6H2)NC(H)NH(2,4,6-Me3C6H2), HFMes, with 0.5 or 1.0 equivalents of potassium hydride or potassium bis(trimethylsilyl)amide yields the first potassium formamidinate complex [K{(η6-Mes)NC(H)N(Mes)}{(η6-Mes)NHC(H)N(Mes)], which displays attenuated reactivity with respect to deprotonation and solvent replacement of the included HFMes ligand.