1. Department of Chemistry, Faculty of science University of Lucknow Lucknow 226007 India
2. Chemical Division Geological Survey of India Northern Region Lucknow 226024 India
3. Department of Chemistry Guru Ghasidas Vishwavidyala, Koni Bilaspur 495009 India
4. Department of Chemistry University of Delhi Delhi India
5. Material and Chemical Characterization Facility (MC2) University of Bath Bath BA27AY UK
6. Department of Chemistry, College of Science King Saud University Riyadh 11451 Saudi Arabia