(1E) N-Hydroxy-3-(1H-imidazol-1-yl)-1-phenylpropan-l-imine (H3IPI) is a precursor to potential antifungal agents and was subjected to experimental and simulated spectroscopic (UV, FT-IR, FT-Raman as well as H-1 and C-13 NMR) characterization. Density functional theory, Hartree-Fock fundamental wavenumbers and intensity of the modes are interpreted with the aid of structure optimizations and normal force field computations. The complete wavenumbers assignments of H3IPI were made on the basis of potential energy distribution of each vibrational mode. The electronic and excited state properties have been determined by time dependent-density functional theory method. The responsiveness parameters as chemical potential, global hardness, and electrophilicity index have also been calculated. The scaled B3LYP/6-311++G (d,p) calculations showed better coincidence with the experimental findings of H3IPI over the other computation method. Molecular electrostatic potential and thermodynamic properties of the title compound were also investigated. In addition, Mulliken and natural charges distribution, non-linear optics properties as well as natural bond orbital analysis of the title molecule were calculated and interpreted. Theoretical calculations of the NMR chemical shifts of H3IPI were carried out through CIAO method at B3LYP/6-311++G (d,p) level and the results were compared with the experimental values. (C) 2018 Elsevier B.V. All rights reserved.
(1E)-N-羟基-3-(
1H-咪唑-1-基)-1-苯
丙烷-1-
亚胺(H3I
PI)是一种潜在抗真菌剂的前体,并进行了实验和模拟光谱(UV、FT-IR、FT-Raman以及H-1和C-13 NMR)表征。通过密度泛函理论(DFT)、Hartree-Fock基本波数和模式强度的分析,结合结构优化和正规力场计算进行了解释。H3I
PI的完整波数指派是基于每个振动模式的潜在能量分布。电子和激发态性质通过含时密度泛函理论方法确定。
化学势、全局硬度和亲电性指数等响应参数也进行了计算。采用B3LYP/6-311++G(d,p)基准的方法显示与H3I
PI的实验结果有更好的一致性。此外,还研究了标题化合物的分子静电势和热力学性质。计算了标题分子的Mulliken和自然电荷分布、非线性光学性质以及自然键轨道分析。H3I
PI的NMR
化学shift的理论计算通过CIAO方法在B3LYP/6-311++G(d,p)
水平上进行,并与实验值进行了对比。© 2018 Elsevier B.V. 保留所有权利。