Jan UllahSupervisor By: Prof. Dr.Imtiaz Ahmad2026-10-062026-10-062015http://repository.uop.edu.pk/123456789/636I, the undersigned wishes to acknowledge the all mighty ALLAH and the listed individuals & institutions:  My worthy supervisor, Prof. Dr.Imtiaz Ahmad for his friendly attitude, guidance, help, valuable suggestions and encouragements during the course of this study  Prof. Dr.Yousaf Iqbal, Director, Institute of Chemical Sciences  My worthy teachers, namely Prof. Dr. M. Ishaq, Dr. M. Yaseen, Dr. Waqas Ahmad and Dr. Kashif Gul for their support  Quarter concerned of the Higher Education Commission, Islamabad for Access to Scientific Instruments  Laboratory staff , Institute of Chemical Sciences, University of Peshawar  Ministerial staff, Institute of Chemical Sciences, University of Peshawar  Directorate of Admissions, University of Peshawar  Parents, wife, children and all family members  Friends, laboratory colleagues, and class fellows  All those who directly and indirectly helped me in successful completion of this thesis.enThesis