1. Computational Materials Science Unit, DOT Materials Science Research Group,Department of Physics, Faculty of Physical Sciences, Alex Ekwueme Federal University Ndufu-Alike, Ikwo, Ebonyi 1010, Nigeria
2. Computational Chemistry Group, Department of Chemistry, Faculty of Science, University of Mauritius, Réduit 80837, Mauritius
3. Centre of Natural Product Research, Department of Chemical Sciences, University of Johannesburg, Doornfontein Campus, Johannesburg 2028, South Africa