1. Department of Chemistry, Faculty of Science, University of Lucknow, Lucknow 226 007, India
2. Department of Chemistry, Dr. Ram Manohar Lohiya Avadh University, Ayodhya, 224001, India
3. Materials and Chemical Characterisation Facility (MC2), University of Bath, Claverton Down, Bath, BA2 7AY, UK
4. Department of Chemistry, University of Bath, Bath, BA27AY, UK
5. Department of Chemistry, Guru Ghasidas Vishwavidyala, Koni, Bilaspur, 495009, India
6. Department of Chemistry, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia