1. Department of Chemistry, School of ScienceUniversity of Management and Technology Lahore 54770 Pakistan
2. Center of Super Diamond and Advanced Films (COSDAF), Department of ChemistryCity University of Hong Kong 83 Tat Chee Avenue Kowloon China
3. Department of ChemistryGovernment College Women University Faisalabad 38000 Pakistan
4. Mathematics Department, Faculty of ScienceCairo University Giza 12613 Egypt
5. School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix CompositesShanghai Jiao Tong University Shanghai 200240 China