Synthesis and characterization of new heterodinuclear (4f, 4f′) lanthanide complexes

摘要: Abstract A tripodal compartmental Schiff base ligand resulting from reaction of 3-ethoxysalicylaldehyde and tris(2-aminoethyl)amine can yield heterodinuclear lanthanide complexes in which the Ln ions are coordinated inner N4O3 outer O3O3 sites. The key compound this synthetic route is neutral mononuclear complex ion chelated coordination site. Introduction second as a trifluoroacetate salt yields entities soluble enough to be characterized by electrospray mass spectrometry techniques. With help induced shifts observed 1 H NMR spectra different complexes, we have been able confirm that equivalent chloride species not subject scrambling methanol solution.