1. Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India
2. Centre for Supramolecular Chemistry Research (CSCR), Department of Chemistry, University of Cape Town, Cape Town, South Africa
3. Department of Basic Science, Vishwavidyalaya Engineering College, Lakhanpur, Sarguja University, Lakhanpur, Chhattisgarh-497116, India
4. Department of Chemistry and Center for Theoretical Studies, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
5. Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400076, India