1. Department of Chemistry, University of Puerto Rico, Mayagüez, Puerto Rico 00681, United States
2. School of Science and Technology, Universidad Ana G. Méndez, Cupey Campus, San Juan, Puerto Rico 00926, United States
3. Department of Chemistry and Chemical Biology, Baker Laboratory and the Cornell High Energy Synchrotron Source, Cornell University, Ithaca, New York 14853, United States
4. Department of Chemistry and Biochemistry, University of Texas at El Paso, El Paso, Texas 79968, United States
5. Department of Chemistry, University of California Berkeley, Berkeley, California 94720, United States
6. Department of Physics, University of Puerto Rico, San Juan, Puerto Rico 00926, United States
7. Department of Physics and Engineering Physics, Central Connecticut State University, New Britain, Connecticut 06050, United States
8. Cornell High Energy Synchrotron Source, Wilson Laboratory, Cornell University, Ithaca, New York 14853, United States
9. Department of Chemistry, University of Puerto Rico, San Juan, Puerto Rico 00926, United States