Observation of the New κ2C,O:κ2C′,O′ Coordination Mode of 1,1,2,2-Tetraacetylethanato Ligand in a Dinuclear 1,1,1,5,5,5-Hexafluoroacetylacetonato Palladium(II) Complex

Abstract

Abstract We have isolated a new dinuclear palladium(II) complex containing 1,1,2,2-tetraacetylethanato (taet) and 1,1,1,5,5,5-hexafluoroacetylacetonato (hfac) ligands, [(hfac)Pd(C,O-taet)Pd(hfac)] (2b), whose crystallographic study has revealed that taet is coordinated to each palladium center as a κ2C,O ligand to form a five-membered chelate ring. Complex 2b provides the first example of the κ2C,O:κ2C′,O′ coordination mode of β-diketonato ligand, which slowly tautomerizes to [(hfac)Pd(O,O-taet)Pd(hfac)] (2a).