New oligothienyl-phenanthroline ligands: precursors for polymers consisting of conjugated links entwined around transition metal G. Bidan, M. Billon, B. Divisia-Blohorn, B. Leroy, P. L. Vidal, J. M. Kern and J. P. Sauvage J. Chim. Phys., 95 6 (1998) 1254-1257 DOI: 10.1051/jcp:1998255