Department of Physics, University of Warwick, Coventry CV4 7AL, UK.
Chem Commun (Camb). 2012 Nov 14;48(88):10844-6. doi: 10.1039/c2cc36094b. Epub 2012 Oct 1.
Two-dimensional (1)H double-quantum and (14)N-(1)H & (1)H-(13)C heteronuclear magic-angle spinning (MAS) NMR spectra recorded at natural isotopic abundance identify specific intermolecular COOH···N(arom) and CH(arom)···O=C hydrogen-bonding interactions in the solid-state structure of an indomethacin-nicotinamide cocrystal, thus additionally proving cocrystal formation.
二维 (1)H 双量子和 (14)N-(1)H & (1)H-(13)C 异核魔角旋转 (MAS) NMR 光谱在天然同位素丰度下记录,在吲哚美辛-烟酰胺共晶的固态结构中鉴定出特定的分子间 COOH···N(芳环)和 CH(芳环)···O=C 氢键相互作用,从而进一步证明了共晶的形成。