1. Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, India
2. Department of Inorganic Chemistry, Faculty of Science, Palacký University, 17 Listopadu 12, 77146 Olomouc, Czech Republic
3. Division of Biologically Active Complexes and Molecular Magnets, Regional Centre of Advanced Technologies and Materials, Faculty of Science, Palacký University, Šlechtitelů 27, 783 71 Olomouc, Czech Republic