1. Department of Chemical and Geological Sciences; University of Cagliari; Cittadella Universitaria, SS 554 bivio Sestu 09042 Monserrato (CA) Italy
2. Department of Chemical Sciences, Synthesis and Solid State Pharmaceutical Centre and Bernal Institute; University of Limerick; Limerick V94 T9PX Ireland
3. Department of Chemistry; Alzahra University; Tehran Iran