1. Institute of Chemistry, Academia Sinica, 128 Academia Road, Section 2, Nankang District, Taipei 11529, Taiwan
2. Department of Chemistry, National Taiwan University, 1 Roosevelt Rd, Section 4, Da’an District, Taipei City 10617, Taiwan
3. Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
4. Division of Physics, National Center for Theoretical Sciences, 1 Roosevelt Road, Section 4, Taipei City 10617, Taiwan