1. Department,
of Chemistry and Physics, Clayton State University, 2000 Clayton
State Boulevard, Morrow, Georgia 30260-0285, United States
2. Department
of Chemistry, University of Virginia, P.O Box 400319, Charlottesville, Virginia 22904-4319, United States
3. Department
of Chemistry, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon, 406-772, South Korea