Department of Chemistry University of Puerto Rico Río Piedras San Juan PR 00931 USA;
Department of Chemistry & Biochemistry Elizabethtown College Elizabethtown PA 17022 USA;
Department of Chemistry University of Puerto Rico Río Piedras San Juan PR 00931 USA;
Department of Chemical Engineering University of Puerto Rico Mayagüez Campus Mayagüez PR 00681 USA;
Department of Chemical Engineering University of Puerto Rico Mayagüez Campus Mayagüez PR 00681 USA;
Department of Chemistry University of Puerto Rico Río Piedras San Juan PR 00931 USA;