1. Central Salt and Marine Chemicals Research Institute, (CSIR-CSMCRI); Bhavnagar 364002 Gujarat India
2. Academy of Scientific and Innovative Research (AcSIR), CSIR-CSMCRI; Bhavnagar Gujarat. 364 002.
3. Department of Chemistry; Savitribai Phule Pune University (formerly University of Pune); Ganeshkhind Pune 411007
4. Institut fur Organische Chemie; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany