1. Computational and Bio‐Simulation Research Group, University of Calabar, Calabar Nigeria P.M.B 1115
2. Department of Pure and Applied Chemistry, Faculty of Physical Sciences, University of Calabar Calabar Nigeria P.M.B 1115
3. Department of Chemical Sciences, Clifford University Owerrinta Nigeria
4. Research Centre for Synthesis and Catalysis, Department of Chemical Sciences, University of Johannesburg 2006 South Africa