1. Department of Chemistry, Graduate School of
Science, Hiroshima University (HIRODAI),
1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan
2. Institute of Molecular Science, 5-1 Higashiyama, Myodaiji, Okazaki 444-8787, Japan
3. Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis,
Minnesota, United States
4. Department of Chemistry, Memorial University, St. John’s, Newfoundland and Labrador, A1B 3X7, Canada