1. Department of Chemistry, Purdue University, West Lafayette, Indiana 47907-2084, United States
2. Central Analytical Research Facility and the School of Chemistry and Physics, Queensland University of Technology, Brisbane, QLD 4000, Australia
3. Department of Computer Science (by courtesy), Purdue Institutes of Drug Discovery and Integrative Neuroscience, Purdue Center for Cancer Research, West Lafayette, Indiana 47907, United States