1. Department
of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, U.K.
2. Department of Chemistry & Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
3. Australian Synchrotron, 800 Blackburn Road, Clayton, Victoria 3168, Australia
4. Département
PCI, Université du Maine, Avenue Olivier Messiaen, 72085 Le Mans, Cedex 09, France