1. Department of ChemistryUniversity of Gujrat Gujrat 50700 Pakistan
2. Department of Chemistry, Faculty of ScienceKing Khalid University Abha 61413 Saudi Arabia
3. Department of ChemistryKhwaja Fareed University of Engineering & Information Technology Rahim Yar Khan 64200 Pakistan
4. Department of ChemistryQuaid‐i‐Azam University Islamabad 45320 Pakistan
5. Department of PhysicsUniversity of Sargodha Sargodha Pakistan
6. Departamento de Química Fundamental, Instituto de QuímicaUniversidade de São Paulo Av. Prof.LineuPrestes, 748 São Paulo 05508‐000 Brazil