1. Department of Chemistry, Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
2. Department of Chemistry, Center for NMR Spectroscopy, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
3. Polymer Characterization Research Technology Platform, University of Warwick, Coventry CV4 7AL, United Kingdom