1. Department of Chemistry, University of New Mexico, Albuquerque, New Mexico 87131
2. Laboratoire de Physique Moléculaire, UMR CNRS 6624, Université de Franche-Comté, Campus de la Bouloie, UFR Sciences et Techniques 25030 Besançon cedex, France
3. Institute of Theoretical and Computational Chemistry, Laboratory of Mesoscopic Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China