1. Department of Physics, University of Puerto Rico, San Juan, Puerto Rico 00926, United States
2. Faraday Technology Inc., Englewood, Ohio 45315, United States
3. Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
4. Departamento de Ingeniería Química y Metalurgia, Universidad de Sonora, Hermosillo, México 83000, United States
5. Department of Chemistry, University of Puerto Rico, San Juan, Puerto Rico 00926, United States
6. Department of Chemistry, Universidad Ana G. Méndez, Cupey Campus, San Juan, Puerto Rico 00926, United States