1. Department of Chemistry, Sardar Patel University, Vallabh Vidyanagar388120, Gujarat, India
2. Department of Chemistry, AEPS Institute of Science, Ankleshwar393002, Gujarat, India
3. Veer Narmad South Gujarat University, Surat395007, Gujarat, India
4. Branch laboratory, CSIR-North East Institute of Science & Technology (NEIST), Imphal795004, Manipur, India