1. Department of Chemistry, Jahangirnagar University, Dhaka 1342, Bangladesh, http://people.juniv.edu/profile/enamullah
2. Department of Chemistry, University of Pisa, via Moruzzi 3, 56124 Pisa, Italy
3. Institut für Anorganische Chemie und Strukturchemie, Heinrich‐Heine‐Universität, Universitätsstr. 1, 40225 Düsseldorf, Germany, http://www.janiak.hhu.de