1. Department of Chemistry, University of York, Heslington, York YO10 5DD, U.K.
2. Centro de Química Estrutural, Institute of Molecular Sciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, Lisboa 1049 001, Portugal
3. Institute of Chemical Sciences, School of Engineering and Physical Sciences, Heriot−Watt University, Edinburgh EH14 4AS, U.K.
4. Institut Laue−Langevin, Grenoble 38000, France
5. ISIS Neutron Source Facility, Harwell Science and Innovation Campus, Didcot OX11 0DE, U.K.