1. Joint UCSD-CNRS Research Chemistry Laboratory (UMI 3555) Department of Chemistry and Biochemistry University of California San Diego La Jolla CA 92093-0358 USA
2. UCSD Crystallography Facility Department of Chemistry and Biochemistry Urey Hall Room 5128 9500 Gilman Drive, M/C 0358 La Jolla CA 92093-0358 USA