1. Computational and Bio-Simulation Research Group, University of Calabar, Calabar 540004, Nigeria
2. Department of Pure and Applied Chemistry, Faculty of Physical Sciences, University of Calabar, Calabar 540004, Nigeria
3. Department of Chemical Sciences, Clifford University Owerrinta, Abia State 440001, Nigeria
4. Research Centre for Synthesis and Catalysis, Department of Chemical Sciences, University of Johannesburg, Johannesburg 2006, South Africa