Dynamic Nuclear Polarization NMR Spectroscopy Allows High-Throughput Characterization of Microporous Organic Polymers

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• 作者：Fr茅d茅ric Blanc ; Samantha Y. Chong ; Tom O. McDonald ; Dave J. Adams ; Shane Pawsey ; Marc A. Caporini ; Andrew I. Cooper
• 刊名：Journal of the American Chemical Society
• 出版年：2013
• 出版时间：October 16, 2013
• 年：2013
• 卷：135
• 期：41
• 页码：15290-15293
• 全文大小：271K
• 年卷期：v.135,no.41(October 16, 2013)
• ISSN：1520-5126

文摘

Dynamic nuclear polarization (DNP) solid-state NMR was used to obtain natural abundance ¹³C and ¹⁵N 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.