by 1H, 13C, and 15N NMR spectroscopies. The results were compared with 13C and 15N CPMAS NMR and IR spectral as well as with X-ray structural data. Intermolecular interactions in solution and in solid state were found to have a similar nature. Relatively strong Namide−H···Npyridine intermolecular hydrogen bonds enable dimerization to take place. Steric interactions in N-pivaloyl- and N-1-adamantylcarbonyl
通过1 H,13 C和15 N NMR光谱研究了2-酰基
氨基吡啶及其6-甲基衍
生物在
氯仿溶液中的聚集。将结果与13 C和15 N C
PMAS NMR和IR光谱以及X射线结构数据进行了比较。发现溶液中和固态的分子间相互作用具有相似的性质。相对强的N酰胺-H···N
吡啶分子间氢键使二聚作用得以发生。N-新戊酰和N中的立体相互作用-1-
金刚烷基羰基以及由6-甲基引起的那些阻碍了由N酰胺-H··N
吡啶分子间氢键稳定的二聚体聚集体的形成。通常,DFT优化的
氯仿溶液中聚集体的几何形状与X射线晶体结构一致。还发现了C = O基团的拉伸振动带的波数,表明存在于固态的氢键的类型。