1. Department of Chemistry; Govt. Rajmata Vijayaraje Sindhiya Girls College Kawardha; Distt-Kabirdham 491995 Chhattisgarh India
2. School of Studies in Chemistry; Pt. Ravishankar Shukla University; Raipur Chhattisgarh India
3. Department of Chemistry and Interdepartmental NIS Centre; Università di Torino; Via Pietro Giuria 7 10125 Turin Italy