1. Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge
CB2 1EW, United Kingdom
2. Department of Chemistry, Stephenson Institute for Renewable Energy, University of Liverpool, Crown Street, Liverpool L69
7ZD, United Kingdom
3. Bruker BioSpin Corporation, 15 Fortune Drive, Billerica,
Massachusetts 01821, United States
4. Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400,
United States