1. Institute
of Chemistry, Academia Sinica, Nankang, Taipei 115, Taiwan
2. Molecular
Science and Technology Program, TIGP, Institute of Chemistry, Academia Sinica, Nankang, Taipei 115, Taiwan
3. Department
of Chemistry, National Tsing Hua University, Hsinchu 300, Taiwan
4. Instrumentation
Center, National Taiwan University, Taipei 106, Taiwan