Observation of new kappa 2C,O :kappa 2C',O' coordination mode of 1,1,2,2-tetraacetylethanato ligand in a dinuclear 1,1,1,5,5,5-hexafluoroacetylacetonato palladium(II) complex

Fukuda Y; Sakumoto M; Tanabe Y; Ishii Y; Suzuki W; Nakao A

Chemistry Letters, Vol.35, No.8, 936-937, 2006

DOI10.1246/cl.2006.936 Export Citation

Observation of new kappa 2C,O :kappa 2C',O' coordination mode of 1,1,2,2-tetraacetylethanato ligand in a dinuclear 1,1,1,5,5,5-hexafluoroacetylacetonato palladium(II) complex

Fukuda Y, Sakumoto M, Tanabe Y, Ishii Y, Suzuki W, Nakao A

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 kappa C-2,O ligand to form a five-membered chelate ring. Complex 2b provides the first example of the kappa C-2,O:(KC)-C-2',O' coordination mode of beta-diketonato ligand, which slowly tautomerizes to [(hfac)Pd(O,O-taet)Pd(hfac)] (2a).