1. Dipartimento
di Chimica “G. Ciamician″, Universita’ degli Studi di Bologna, Via Selmi, 2 I - 40126 Bologna, Italy
2. Chemistry
Department, Faculty of Science, Damanhour University, Damanhour 22511, Egypt
3. Université
de Lyon, Université Claude Bernard Lyon 1, ENS Lyon, Centre
Nationale de Recherche Scientifique, 46 allée d’Italie, 69007 Lyon Cedex 07, France