Dynamic Nuclear Polarization NMR Spectroscopy Allows High-Throughput Characterization of Microporous Organic Polymers
Journal of the American Chemical Society2013Vol. 135(41), pp. 15290–15293
Citations Over TimeTop 10% of 2013 papers
Frédéric Blanc, Samantha Y. Chong, Tom O. McDonald, Dave J. Adams, Shane Pawsey, Marc A. Caporini, Andrew I. Cooper
Abstract
Dynamic nuclear polarization (DNP) solid-state NMR was used to obtain natural abundance (13)C and (15)N CP MAS NMR spectra of microporous organic polymers with excellent signal-to-noise ratio, allowing for unprecedented details in the molecular structure to be determined for these complex polymer networks. Sensitivity enhancements larger than 10 were obtained with bis-nitroxide radical at 14.1 T and low temperature (∼105 K). This DNP MAS NMR approach allows efficient, high-throughput characterization of libraries of porous polymers prepared by combinatorial chemistry methods.
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