1. Computational and Bio-Simulation Research Group, University of Calabar, Calabar, Nigeria
2. Department of Pure and Applied Chemistry, Faculty of Physical Sciences, University of Calabar, Calabar, Nigeria
3. Department of Chemistry, Akwa-Ibom State University, Uyo, Nigeria
4. Department of Chemistry, University of Ilorin, Ilorin, Nigeria
5. Department of Chemistry, University of Buea, Buea, Cameroon