Angewandte Chemie - International Edition
Angewandte Chemie - International Edition
5 years ago

Natural Abundance 17O DNP NMR Provides Precise O−H Distances and Insights into the Brønsted Acidity of Heterogeneous Catalysts

Natural Abundance 17O DNP NMR Provides Precise O−H Distances and Insights into the Brønsted Acidity of Heterogeneous Catalysts
Zhuoran Wang, Marek Pruski, Frédéric A. Perras, Igor I. Slowing, Pranjali Naik
Brønsted acidic sites on catalyst surfaces are observed by 17O dynamic nuclear polarization-enhanced NMR spectroscopy, which hyperpolarizes nuclei by microwave-induced saturation of electrons. In their Communication (DOI: 10.1002/anie.201704032), M. Pruski et al. report the measurement of O−H distances with sub-picometer precision. The length of the O−H bond is directly related to the Brønsted acidity of the sites and is also a reporter of the formation of intermolecular hydrogen-bonding interactions.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/anie.201704989

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