Isomeric nitro substituted symmetrical benzamides: Crystal Structures, Hirshfeld surface analysis, 3D energy frameworks, DNA binding and cell line studies
作者:Atteeque Ahmad、Nasima Arshad、Fouzia Perveen、Rabail Ujan、Aamer Saeed、Pervaiz A. Channar、Shahid I. Farooqi、Ghulam Shabir、Tuncer Hökelek、Michael Bolte、Aneela Javed、Salik Javed
DOI:10.1016/j.molstruc.2021.131396
日期:2022.1
The N–H···O and C–H···O hydrogen bond energies, by computational analysis, were found to be 71.0 and 50.5 kJ mol−1 (for ASP4) and 37.0, 36.9 and 26.0, 24.1 kJ mol−1 (for ASP5). The evaluations of the electrostatic, dispersion and total energy frameworks indicated that the stabilizations were dominated via the dispersion energy contributions in both compounds. DNA binding studies pointed that ASP4
合成了异构硝基取代的对称苯甲酰胺、2-硝基-N-(2-硝基苯甲酰基)苯甲酰胺 – ASP4 和 3-硝基-N-(3-硝基苯甲酰基)苯甲酰胺 – ASP5。对两种晶体的分析证实了从光谱数据中指定的合成化合物的结构。分子间 N–H…O 和 C–H…O 氢键通过分叉的氢键将分子连接成三维结构,在其中它们可能有效地稳定结构。相邻分子苯环之间的π-π相互作用进一步巩固了晶体堆积。Hirshfeld 表面 (HS) 分析的晶体结构指定了来自 H ... O/O ... H (46.4%) 和 H ... H (20.3%) (ASP4) 和 H 的晶体堆积的实质性贡献... O/O ... H (36.7%), H ... C/C ... H (19.9%) 和 H ... H (14. 1%) (ASP5) 交互。通过计算分析,发现 N–H…O 和 C–H…O 氢键能分别为 71.0 和 50.5 kJ