1. DTU Chemistry
2. Technical University of Denmark
3. DK-2800 Kongens Lyngby
4. Denmark
5. Department of Chemistry
6. University of Calcutta
7. Kolkata-700009
8. India
9. Hylleraas Centre for Quantum Molecular Sciences
10. University of Tromsø - The Arctic University of Norway
11. 9037 Tromsø
12. Norway