1. Organic Chemistry Division, National Chemical Laboratory (CSIR-NCL), Dr Homi Bhabha Road, Pune 411008, India
2. Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
3. Central NMR Facility, National Chemical Laboratory (CSIR-NCL), Dr Homi Bhabha Road, Pune 411008, India