Reactivity of chiral diiminodiphosphine ligands towards PdCl2(PhCN)2: synthesis and crystal structures of two unexpected dinuclear palladium(II) complexes

Abstract

The interaction of PdCl₂(PhCN)₂ with (S)-N,N′-bis[2-(diphenylphosphino)benzylidene]-2,2′-diimino-1,1′-binaphthylene (S)-L¹ and (S,S′)-N,N′-bis[2-(diphenylphosphino)-benzylidene]-1,2-diimino-1,2-diphenylethane (S,S′)-L² gave the dimeric complex {PdCl[2-(Ph₂P)C₆H₄CHN]}₂1 and the dinuclear complex {cis-PdCl₂[2-(Ph₂P)C₆H₄CH NCH(Ph)CH(C₆H₄PPh₂-2)NC₆H₄(PPh₂)-2]PdCl}{Cl} 2, respectively, whose structures were ascertained by X-ray crystallography.