An unprecedented bonding mode for potassium within a PCP-pincer palladium hydride-K-Selectride® complex

Reaction of (PCP)i-PrPdCl and K-Selectride® solution does not yield a simple (PCP)i-PrPdH species, but rather an adduct containing K(sec-Bu3BH). This adduct has been characterized by X-ray crystallography, revealing that the tri-coordinate K+ ion is bound only to hydrides. This [H3K]+ bonding mode for K+ ions was previously unknown.