1. Department of Chemistry
2. Sultan Qaboos University
3. Muscat
4. Oman
5. State Key Laboratory of Rare Earth Resource Utilization
6. Changchun Institute of Applied Chemistry
7. Chinese Academy of Sciences
8. Changchun 130022
9. People's Republic of China
10. Pople Computational Chemistry Laboratory
11. UFS
12. 49100-000 São Cristóvão
13. Brazil
14. Department of Applied Biology and Chemical Technology
15. The Hong Kong Polytechnic University
16. Kowloon
17. University of Bath
18. Bath BA2 7AY
19. UK