Data from: Intramolecular hydrogen bonds in 1,4-dihydropyridine derivatives
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https://datadryad.org/dataset/doi:10.5061/dryad.j3m73
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资源简介：
1,4- dihydropyridine (1,4-DHP) derivatives have been synthesized and
characterized by 1H, 13C, 15N NMR spectroscopy, secondary H/D 13C isotope
shifts, variable temperature 1H NMR experiments and quantum-chemical
calculation. The intramolecular hydrogen-bonds NH•••O=C and CH•••O=C in
these compounds were established by NMR and quantum-chemical studies. The
downfield shift of the NH proton, accompanied by the upfield shift of the
15N NMR signals, the shift to the higher wave numbers of the NH stretching
vibration in the IR spectra and the increase of the 1J(15N,1H) values may
indicate the shortening of the N-H bond length upon intramolecular
NH•••O=C hydrogen bond formation.
提供机构：
Dryad
创建时间：
2018-05-04
