1. Université Clermont Auvergne, CNRS, SIGMA Clermont, Institut de Chimie de Clermont-Ferrand, F-63000 Clermont−Ferrand, France
2. Umeå University, Department of Chemistry, SE-90187 Umeå, Sweden
3. Laboratory
of Analysis of Organic Compounds (509), Faculty of Sciences I, Lebanese University, Hadath, Beirut Lebanon