1. Department of Chemistry, University of California, Davis, California 95616,
United States
2. Department
of Chemistry, Merkert
Chemistry Center, Boston College, Chestnut
Hill, Massachusetts 02467, United States
3. Department of Chemistry, University of North Florida, Jacksonville, Florida
32224, United States
4. Beijing
National Laboratory
for Molecular Sciences, State Key Lab of Rare Earth Materials Chemistry
and Applications, PKU-HKU Joint Laboratory in Rare Earth Materials
and Bioinorganic Chemistry, Peking University, Beijing, 100871, P.R. China