1. Department of Chemistry, Rice University, BioScience Research Collaborative, Houston, Texas 77005, United States
2. Department of Chemistry and Biochemistry, Brigham Young University, Provo, Utah 84602, United States
3. Shared Equipment Authority, Rice University, 6100 Main Street, Houston, Texas 77005, United States
4. Life and Health Sciences Department, University of North Texas at Dallas, Dallas, Texas 75241, United States