1. Department of Chemistry School of Physical and Chemical Sciences, Material Science Innovation & Modelling (MaSIM) Focus Area, Faculty of Natural and Agricultural Sciences, North-West University (Mafikeng Campus), Private Bag X2046, Mmabatho 2735, South Africa
2. Institute of Chemistry, Rio de Janeiro State University, São Francisco Xavier St., 524, PHLC, 310, Rio de Janeiro 20500-013, Brazil