1. Department of Physics and Atmospheric Science, Dalhousie University, Halifax, Nova Scotia B3H4R2, Canada
2. Department of Chemistry, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
3. Chemical Informatics Group, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States
4. School of Biomedical Engineering, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
5. Department of Biochemistry and Molecular Biology, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada