Department of Chemistry, The University of Azad Jammu and Kashmir, Muzaffarabad 13100, Pakistan;
Department of Chemistry, The University of Azad Jammu and Kashmir, Muzaffarabad 13100, Pakistan;
University of Sargodha, Department of Physics, Sargodha;
Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan;
Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan;