Spectroscopic Study of Metal Coordination Compounds with 1,2-Trans-(4-Pyridyl)ethene
SHI Xiu-min1,2, WANG Min1, SONG Wei2, ZHAO Bing2*
1. College of Chemical Engineering, Changchun University of Technology, Changchun 130012, China 2. State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, China
Abstract：In the present article, three kinds of metal-organic coordination compounds were synthesized between 1,2-trans-(4-pyridyl)ethene (dpe) and sulfate of Cu(Ⅱ), Zn(Ⅱ) and Cd(Ⅱ) by hydrothermal reactions. Infrared, Raman and ultraviolet-visible spectra of dpe and its metal-organic complexes were studied. Assignments of the main FTIR and Raman bands were done in detail. The relationship between these characteristic bands and the structure of ligands and coordination compounds was discussed. In the FTIR spectra, the co-vibration absorption band of C—C and C—N for dpe shifts to the higher wavenumbers for three metal-organic coordination compounds, respectively. In the Raman spectra, the corresponding vibration bands of C—N, CC, C—C and C—H were also observed to shift to higher wavenumbers. In the UV-visible absorption spectra, Zn-dpe and Cd-dpe has an absorption peak which could be attributed to the ligand absorption itself. However, two absorption peaks were observed for the complex of Cu-dpe, which were ascribed to the ligand absorption band and d—d electronic transition in the coordination compound. This indicates that there is a great change in the absorption spectra for the same ligand but with different metal ions.
石秀敏1,2，王 敏1，宋 薇2，赵 冰2* . 4-乙烯基联吡啶金属配合物的光谱研究 [J]. 光谱学与光谱分析, 2013, 33(03): 714-717.
SHI Xiu-min1,2, WANG Min1, SONG Wei2, ZHAO Bing2* . Spectroscopic Study of Metal Coordination Compounds with 1,2-Trans-(4-Pyridyl)ethene. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2013, 33(03): 714-717.
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