1. Department
of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520, United States
2. William
R. Wiley Environment Molecular Sciences Laboratory, Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352, United States
3. Key
Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry
of Education, College of Chemistry and Environmental Science, Hebei University, Baoding 071002, China