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[摘要]:Two-dimensional H-1 double-quantum and N-14-H-1 & H-1-C-13 heteronuclear magic-angle spinning (MAS) NMR spectra recorded at natural isotopic abundance identify specific intermolecular COOH center dot center dot center dot N-arom and CHarom center dot center dot center dot O=C hydrogen-bonding interactions in the solid-state structure of an indomethacin-nicotinamide cocrystal, thus additionally proving cocrystal formation. |
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