The crystal structure of the title compound, (E)-2-acetyl-4-(4-methoxyphenyldiazenyl) phenol, displays a trans configuration of the azo moiety as found for other azo (diazene) derivatives. The aromatic mean planes are nearly coplanar and the dihedral angle between the 2 aromatic rings is 3.04(8)°. The molecules, with strong intramolecular O--H...O hydrogen bonding, are linked by weak van der Waals interactions in the 3-dimensional network. The molecular geometry, determined using X-ray diffraction techniques, was also calculated with the density functional theory (DFT), employing the hybrid exchange-correlation functional B3LYP. Experimental and theoretical IR spectra of the compound were also calculated for comparison. The results of the experimental and theoretical calculations are compared in this study.
标题化合物 (E)-2-acetyl-4-(4-methoxyphenyldiazenyl) phenol 的晶体结构显示出偶氮分子的反式构型,与其他偶氮(重氮)衍
生物相同。 芳香平均平面几乎共面,两个芳香环之间的二面角为 3.04(8)°。 分子内的 O--H...O氢键很强,在三维网络中通过微弱的范德华相互作用连接在一起。 利用 X 射线衍射技术确定的分子几何形状也通过密度泛函理论(DFT)进行了计算,采用的是混合交换相关函数 B3LYP。为了进行比较,还计算了该化合物的实验和理论红外光谱。 本研究对实验和理论计算的结果进行了比较。