1. a Department of Chemistry , GC University , Faisalabad , Pakistan
2. b Department of Chemistry , Quaid-i-Azam University , Islamabad , Pakistan
3. c Department of Chemistry and Biochemistry , University of Agriculture , Faisalabad , Pakistan
4. d Department of Applied Science and Humanities, Faculty of Engineering. and Technology , Mody Institute of Technology and Science (Deemed University) , Lakshmangargh , India