[1] UM, DAE Ctr Excellence Basic Sci, Kalina Campus, Bombay 400098, Maharashtra, India
[2] TIFR, Dept Chem Sci, 1 Homi Bhabha Rd, Bombay 400005, Maharashtra, India
[3] Bruker UK Ltd, Banner Lane, Coventry CV4 9GH, W Midlands, England
[4] Indian Inst Technol, CSIR, Ctr NMR & Struct Chem, Hyderabad 500007, Andhra Pradesh, India