LANTHANIDE(III) COMPLEXES WITH A PODAND SCHIFF-BASE CONTAINING AN N4O3 COORDINATION SITE

New lanthanide complexes [Ln(L)(dmf)](2) with a podand Schiff base lig and H(3)L have been prepared by [3 + 1] condensation of 2,6-diformyl-4 -chlorophenol and tris-(2-aminoethyl) amine in the presence of Ln(Cl)( 3) . nH(2)O (Ln = La, Gd and Dy) and NEt(3). The lanthanide(III) ions coordinate into the inner N4O3 chamber of the ligand bearing three fre e carbonyl groups which may be involved in further functionalization.