NEW OLIGOTHIENYL-PHENANTHROLINE LIGANDS - PRECURSORS FOR POLYMERS CONSISTING OF CONJUGATED LINKS ENTWINED AROUND TRANSITION-METAL

A new class of complexes of entwined ligands, CU(T-1)(2)(-) et CU(T-2) (2)(+), has been synthetized respectively from the 2,9-di-(2-thienyl)- 1,10-phenanthroline (T-1) and the 2,9-di-(2-bithienyl)-1,10-phenanthro line (T-2) Their spectroscopic and electrochemical properties have bee n studied. Electropolymerization of these ligands and complexes on pla tinum electrode is depicted. Cu(T-1)(2)(+) leads to a monolayer which doesn't contain metallic center. On the other hand, the film obtained from CU(T-2)(2)(+) shows an electroactivity of both the metallic cente r and the polymer matrix.