Modeling the intermolecular interactions: Molecular structure of N-3-hydroxyphenyl-4-methoxybenzamide
作者:Sedat Karabulut、Hilmi Namli、Raif Kurtaran、Leyla Tatar Yildirim、Jerzy Leszczynski
DOI:10.1016/j.jmgm.2013.11.001
日期:2014.3
dimer (4) and dimer with added unit cell contacts (5). Molecular structure of 3, 4 and 5 was optimized by applying B3LYP method with 6-31G+(d,p) basis set in gas phase and compared with X-ray crystallographic data including bond lengths, bond angles and selected dihedral angles. It has been concluded that although the crystal packing and dimerization have a minor effect on bond lengths and angles, however
通过3-氨基苯酚(1)和4-甲氧基苯甲酰氯(2)在THF中的酰化反应制得标题化合物N-3-羟苯基-4-甲氧基苯甲酰胺(3),并通过1 H NMR,13 C NMR和元素进行表征分析。通过单晶X射线衍射和DFT计算来确定晶体的分子结构。3在单斜P 2 1 / c空间群中结晶。分子间相互作用(二聚和晶体堆积)对分子几何形状的影响已通过对三种不同模型进行的计算进行了评估;单体(3),二聚体(4)和带有增加的晶胞触点(5)的二聚体。的分子结构3,4和5是通过应用B3LYP法6-31G +(d,p)的气相基组优化,并与X射线结晶数据包括键长,键角和选定的二面角比较。已经得出结论,尽管晶体堆积和二聚化对键长和角影响较小,但是,这些相互作用对于二面角和芳环的旋转构象很重要。