1. Department of Chemistry, Sookmyung Women’s University, Cheongpa-ro 47-gil
100, Yongsan-Ku, Seoul 140-742, Korea
2. Department of Chemistry, Faculty
of Sciences, Kyusyu University, Fukuoka
812-8581, Japan
3. Department
of Theoretical Molecular
Science, Institute for Molecular Science, Okazaki 444-8585, Japan