1. Department of Chemistry, Faculty of Science, University of Lucknow, Lucknow 226007, India
2. Department of Chemistry, Sri Vankateswara College, University of Delhi, New Delhi 110021, India
3. Materials and Chemical Characterisation Facility (MC2), University of Bath, Claverton Down, Bath, BA2 7AY, UK
4. Department of Chemistry, Guru Ghasidas Vishwavidyalaya, India
5. Department of Chemistry, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia