1. Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan
2. Department of Chemistry, College of Science, University of Bahrain, Sakhir 32038, Bahrain
3. National Centre of Excellence in Physical Chemistry, University of Peshawar, Peshawar 25120, Pakistan
4. Institute of Chemical Sciences, Bahauddin Zakaryia University, Multan 6100, Pakistan
5. Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, California 90095, United States