1. Chemistry Department, Faculty Science and Letters, İnönü University, 44069 Malatya, Türkiye
2. Institut Sciences Chimiques de Rennes, UMR 6226 CNRS‐Université de Rennes “Catalyse et Organometalliques”, Campus de Beaulieu, 35042 Rennes, France, Fax: +33‐2‐23236939