Ditopic Ligands. The Synthesis of a Series of Phosphine-Functionalised Macrocycles

Article abstract of DOI:10.1002/hlca.19860690307

The synthesis of a series of phosphine-functionalised macrocycles, 1-6, is described.The combination of N- and O-sites with P- and S-sites provides ligands which may bind transition or non-transition metal ions; as a consequence, they give access to dinuclear complexes containing both a Lewis acid and a redox metallic site.Compounds 1,2 and 6 are heterodinucleating ligands capable of binding two dissimilar metals in proximity.Macrocycles 3-5 are homotopic ligands which may form homodinuclear complexes of transition metals.