1. Department of
Chemistry, University of Guelph, Guelph, Ontario N1G 2W1, Canada
2. CNRS, CRPP, UPR 8641, F-33600 Pessac, France
3. University of
Bordeaux, CRPP, UPR 8641, F-33600 Pessac, France
4. FreeLance Crystallography, London, Ontario N6J 3J5, Canada