1. Department
of Chemistry, University of California, Berkeley, California 94720, United States
2. Department
of Chemical Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
3. Institute
of Atomic and Molecular Physics, Sichuan University, Chengdu, Sichuan 610065, China
4. Department
of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131, United States
5. Chemical
Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States