1. Department of Chemistry, University of Malakand, Chakdara, Pakistan
2. Institute of Chemical Sciences, University of Swat, KPK, Pakistan
3. Department of Pharmacy, University of Malakand, Chakdara, Pakistan
4. Department of Physics, University of Sargodah, Sargodah, Pakistan
5. Anorganishe Chemie II, Universität Bayreuth, Bayreuth, Germany