1. Department of ChemistryNational Institute of Technology Rourkela Orissa-769008 India
2. Department of Life ScienceNational Institute of Technology Rourkela Orissa-769008 India
3. Department of Applied SciencesHaldia Institute of Technology, ICARE Complex Haldia-721657, W.B India
4. Department for X-Ray DiffractionInstitut für Anorganische Chemie, Universität Duisburg-Essen D-45117 Essen Germany