1. School
of Chemistry, EaStCHEM and Centre of Magnetic Resonance, University of St Andrews, St. Andrews KY16 9ST, United Kingdom
2. Sasol UK Ltd., Purdie Building,
North Haugh, St. Andrews KY16 9ST, United Kingdom
3. Institut
des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne, Lausanne CH-1015, Switzerland