Pyrrolidine-containing polypyridines: new ligands for improved visible light absorption by ruthenium complexes.
[reaction: see text] A range of new electron-releasing pyrrolidine-containing bipyridines and terpyridines has been prepared via selective metalation-cross-coupling sequences. The obtained ligands have been involved in microwave-assisted ruthenium complexation leading to homoleptic complexes in high yield. The electron-donor effect of the pyrrolidine nucleus led to a notable improvement of visible light absorption and strong changes in the electrochemical behavior, opening new opportunities for the design of photovoltaic devices.
Martineau
David
D
LIMBP and LCA, IPEM, 1, Bd Arago, Université Paul Verlaine, 57057 Metz, France.
Beley
Marc
M
Gros
Philippe C
PC