Synthesis, Fourier-transform Raman and infrared spectroscopic analysis, and crystal structure of (NiL)2, (L = bis(2,4-dimethyldipyrrin-3-yl)methane) |
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| Authors: | Xufeng Shan Lanying Yang Wei Li Qingqi Chen Zhengping Wang Jiming Hu Jin Shi Ma |
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| Institution: | (1) Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, 100080 Beijing, P. R. China;(2) Department of Chemical Engineering, Harbin Engineering University, 150001 Harbin, P. R. China;(3) Department of Analysis-Measurement Science, Wuhan University, 430072 Wuhan, P. R. China;(4) Biomarin Pharmaceutical Inc., 46 Galli Drive, Novato, California, 94949 |
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| Abstract: | The Ni(II) complex with bis(2,4-dimethyldipyrrin-3-yl)methane, (NiL)2, has been synthesized and characterized by 1H-NMR, UV–Vis, FT-IR, FT-Raman, MS, and elemental analysis. X-ray diffraction analysis at room temperature indicates that the complex crystallizes in triclinic system, space group P–1 with a = 11.344(4), b = 12.703(4), c = 14.936(5) Å,  = 87.017(6)°,  = 75.379(5)°,  = 75.318(5)°, M
r = 826.31, V = 2014.5(11) Å3, Z = 2. The crystal structure of the title complex reveals that it is a dinuclear double-stranded helical entity. The ligands perform as tetradentate ligands and the ratio of Ni(II) to ligand is 2:2. The central Ni(II) atom is tetracoordinated by four nitrogen donors of two ligands and the coordination geometry of Ni(II) can be considered as a distorted tetrahedron configuration. The IR and Raman spectral analysis, assignment, and discussion are presented. |
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| Keywords: | Synthesis crystal structure Ni(II) complex dipyrrin Raman spectroscopy infrared spectroscopy |
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