Dynamic Nuclear Polarization NMR Spectroscopy Allows High-Throughput Characterization of Microporous Organic Polymers
| Autor: | Andrew I. Cooper, Frédéric Blanc, Dave J. Adams, Marc A. Caporini, Tom O. McDonald, Shane Pawsey, Samantha Y. Chong |
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| Rok vydání: | 2013 |
| Předmět: |
chemistry.chemical_classification
Carbon Isotopes Magnetic Resonance Spectroscopy Molecular Structure Nitrogen Isotopes Polymers Surface Properties Triazines Chemistry Analytical chemistry General Chemistry Microporous material Nuclear magnetic resonance spectroscopy Polymer Polarization (waves) Biochemistry Catalysis Spectral line Colloid and Surface Chemistry Molecule Physical chemistry Particle Size Porosity |
| Zdroj: | Journal of the American Chemical Society |
| ISSN: | 1520-5126 0002-7863 |
| DOI: | 10.1021/ja408074v |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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