1. Department of Chemistry
2. SRM Easwari Engineering College
3. Chennai 600 089
4. India
5. Centre of Organic Photonics and Electronics Research
6. Kyushu University
7. Fukuoka 819 0395
8. Japan
9. Tsinghua University
10. Beijing 100 084
11. People's Republic of China
12. School of Advanced Sciences
13. Vellore Institute of Technology (VIT University)
14. Vellore 632 014