1. Department
of Chemistry, Ateneo de Manila University, Schmitt Hall, Loyola Heights, Quezon City 1108, Philippines
2. Department
of Chemistry, College of Arts and Sciences, Negros Oriental State University, Kagawasan Avenue, Dumaguete City 6200, Philippines
3. School
of Environmental and Life Sciences, Chemistry Building-C218, University of Newcastle, University Drive, Callaghan, NSW 2308, Australia