Synthesis,Crystal Structure and Spectral Property of a Water-bridged Co(Ⅱ) Coordination Polymer with 3-Flavonoxylacetic Acid Ligand |
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引用本文: | 孔洋洋,樊惠,韦晓艺,蔡双莲,陈云.Synthesis,Crystal Structure and Spectral Property of a Water-bridged Co(Ⅱ) Coordination Polymer with 3-Flavonoxylacetic Acid Ligand[J].结构化学,2019,38(3):369-375. |
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作者姓名: | 孔洋洋 樊惠 韦晓艺 蔡双莲 陈云 |
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基金项目: | the National Natural Science Foundation of China |
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摘 要: | A new cobalt complex with flavonoid carboxylate ligand was synthesized and characterized. X-ray diffraction data revealed that the compound crystallizes in the monoclinic crystal system, space group P2_1/c with a = 7.936(3), b = 21.475(7), c = 20.010(7) ?, β = 102.856(14)o, V = 3325(2) ?~3, Z = 4, C34H32CoO15, M_r = 739.53, D_c = 1.477 g/cm^3, F(000) = 1532, μ = 0.591 mm-1, R = 0.1123 and w R = 0.1419. In the crystal structure, the Co(Ⅱ) shows 6 coordination geometry, and the flavonoid ligand coordinated with the Co(Ⅱ) ion in a monodentate mode. Hydrogen bonding interactions and π-π stacking interactions lead to the three-dimensional stacking of crystal and increase its stability. Moreover, the thermal stability and luminescent properties of the complex are also investigated. The fluorescence of the complex shows a great reduction of the intensity than that of the ligand.
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关 键 词: | cobalt(Ⅱ) crystal structure water-bridged polymer flavonoid SPECTRAL property |
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