1. Department of Photochemistry,
CNRS, University of Haute Alsace, ENSCMu, 3 rue Alfred Werner, 68093
Mulhouse Cedex, France
2. Department of Organic and Bioorganic
Chemistry, CNRS, University of Haute Alsace, ENSCMu, 3 rue Alfred
Werner, 68093 Mulhouse Cedex, France