1. Department of Chemistry, University of Puerto Rico, Río Piedras Campus, San Juan 00925-2537, Puerto Rico
2. Chemistry Division, Brookhaven National Laboratory, Upton, New York 11973, United States
3. Departamento de Ingeniería Química y Metalurgia, Universidad de Sonora, Hermosillo 83000, Mexico
4. Cornell High Energy Synchrotron Source (CHESS), Wilson Laboratory, Cornell University, Ithaca, New York 14853, United Sates