1. Institute of Atomic and Molecular Sciences, Academia Sinica, P.O. Box 23-166, 1, Section 4, Roosevelt Road, Taipei 10617, Taiwan
2. State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China
3. Department of Chemistry, National Tsing Hua University, Hsinchu and Taiwan International Graduate Program, Academia Sinica, Taipei, Taiwan
4. Department of Chemistry, National Taiwan Normal University, 88, Sec. 4, Tingzhou Road, Taipei 11677, Taiwan