Experimental and DFT studies of (E)-2-[2-(2,6-dichlorophenyl)ethenyl]-8-hydroxyquinoline: Electronic and vibrational properties

详细信息    查看全文

• 作者：Wenqi Sun^a ; ^b ; ^{sunwenqi@ahut.edu.cn} ; Guozan Yuan^a ; ^{guozan@ahut.edu.cn} ; Jingxin Liu^a ; Li Ma^a ; Chengbu Liu^b
• 关键词：Quinolin ; IR and UV&ndash ; vis spectroscopy ; DFT calculations ; Electronic structure properties
• 刊名：Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
• 出版年：2013
• 出版时间：April, 2013
• 年：2013
• 卷：106
• 期：Complete
• 页码：275-283
• 全文大小：651 K

文摘

The title molecule (E)-2-[2-(2,6-dichlorophenyl)ethenyl]-8-hydroxyquinoline (DPEQ) was synthesized and characterized by FT-IR, UV-vis, NMR spectroscopy. The molecular geometry, vibrational frequencies and gauge independent atomic orbital (GIAO) ¹H and ¹³C NMR chemical shift values of the compound in the ground state have been calculated by using the density functional theory (DFT) method. All the assignments of the theoretical frequencies were performed by potential energy distributions using VEDA 4 program. The calculated results indicate that the theoretical vibrational frequencies, ¹H and ¹³C NMR chemical shift values show good agreement with experimental data. The electronic properties like UV-vis spectral analysis and HOMO-LUMO analysis of DPEQ have been reported and compared with experimental data. Information about the size, shape, charge density distribution and site of chemical reactivity of the molecule has been obtained by mapping electron density isosurface with molecular electrostatic potential (MEP).