Patent ID: 8389696

Claim:
A substrate, having at least one surface comprising at least one layer of polymer obtained from a polymerizable diazonium salt having the following formula (I): [X X+ L n D d E m (N 2 + ) p ][(B − ) p+x ] Formula I in which: X is a transition metal selected from the group consisting of ruthenium (Ru), osmium (Os), iron (Fe), cobalt (Co) and iridium (Ir), x is an integer ranging from 1 to 5 inclusive, L is a ligand chosen from pyridine, bipyridine, terpyridine, phenanthroline and phenylpyridine groups, and mixtures thereof, n is an integer ranging from 1 to 5 inclusive, D is a saturated or unsaturated, C 1 -C 5 alkyl spacer compound d=0 or 1, E is an aromatic or polyaromatic spacer compound that can contain one or more heteroatoms, m is an integer ranging from 0 to 5 inclusive, p is an integer >0,and B is a counterion.