1. Department
of Chemistry, University of Hawaii at Manoa, Honolulu, Hawaii 96822, United States
2. Department
of Chemistry, Sapienza University of Rome, Rome 00185, Italy
3. Department
of Chemistry, National Dong Hwa University, Shoufeng, Hualien 974, Taiwan
4. Department
of Chemistry and Biochemistry, Florida International University, Miami, Florida 33199, United States