Affiliation: | 1. Department of Chemistry, National Taiwan University, 1, Roosevelt Rd., Sec. 4, Taipei 106, Taiwan, Fax: (+886)?2‐8369‐3765;2. Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan;3. Laboratoire de Chimie Quantique, Institut de Chimie, UMR 7177, 4, rue Blaise Pascal, 67000 Strasbourg, France, Fax: (+33)?390‐241‐301;4. Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan |