Electrochemical elaboration of thin films of poly[RuII(L)(CO)2Cl2] (L = 4-(2-pyrrol-1-ylethyl)-4'-methyl-2,2'-bipyridine or 4,4'-bis((3-pyrrol-1-ylpropyloxy)carbonyl)-2,2'-bipyridine): photochemical properties and photoimaging.

Thin films of poly[Ru(L)(CO)2Cl2] complexes (L = 4-(2-pyrrol-1-ylethyl)-4'-methyl-2,2'-bipyridine (L1) or 4,4'-bis((3-pyrrol-1-ylpropyloxy)carbonyl)-2,2'-bipyridine (L2)) were prepd. by anodic electropolymn. of the corresponding monomeric complexes on Pt and ITO electrodes. The electrochem. and spectroelectrochem. properties of these films were investigated in CH3CN. Photolysis at 366 nm of the films immersed in CH3CN leads to successive photosubstitutions of the two CO ligands and of the one Cl- ligand by CH3CN for the complex with L = L1, while only the first two photosubstitutions occur for L = L2. On the basis of the photochem. (mono-CH3CN photosubstitutions essentially), images can be created in the films by using masking techniques. In a subsequent step, the unphotolyzed area can be removed from the electrode surface by electrolysis. This procedure left a spacially controlled image of the original mask as a film of poly[Ru(L)(CO)(CH3CN)Cl2]. [on SciFinder(R)]

Références

Titre
Electrochemical elaboration of thin films of poly[RuII(L)(CO)2Cl2] (L = 4-(2-pyrrol-1-ylethyl)-4'-methyl-2,2'-bipyridine or 4,4'-bis((3-pyrrol-1-ylpropyloxy)carbonyl)-2,2'-bipyridine): photochemical properties and photoimaging.
Type de publication
Article de revue
Année de publication
1993
Revue
J. Phys. Chem.
Volume
97
Pagination
5973–5979
ISSN
0022-3654
Soumis le 15 juin 2018