| BATPPH2及其Zn配合物与环糊精的超分子体系研究 | |
| Supramolecular Systems of BATPPH2 and Its Zn Complex with Cyclodextrins | |
| 摘要: 设计合成了5-(4-苯甲酰亚胺基苯基)-10，15，20-三苯基卟啉(BATPPH2)及其锌配合物(BATPPZn)，并通过 1H NMR、IR、UV-Vis、元素分析等方法对化合物的结构加以确认。在中性磷酸盐缓冲溶液中，以荧光光谱法、紫外可见分光光度法和 1H NMR法分别研究了BATPPH2和BATPPZn与α，β，γ-环糊精相互作用形成的超分子体系。利用双倒数曲线法计算了BATPPH2-CD和BATPPZn-CD超分子体系的包结常数，结果表明BATPPH2和BATPPZn与γ-CD的包结常数(K1γ-CD，K2γ-CD)最大，γ-CD表现出最强的包结能力，Zn2+的配位作用使包结物的稳定性降低。 | |
| 关键词: 卟啉 环糊精 超分子体系 荧光光谱法 紫外可见分光光度法 核磁共振氢谱法 | |
| 基金项目: | |
| Abstract: A new porphyrin 5-(4-Benzamido Phenyl)-10, 15, 20-triphenylporphyrin (BATPPH2) and its Zn complex (BATPPZn) were synthesized and characterized by elemental analyses, IR, UV-Vis spectra and 1H NMR respectively. In neutral phosphate buffer solution, the inclusive complexation behavior of BATPPH2 and BATPPZn with α-cyclodextrin(α-CD), β-cyclodextrin (β-CD), and γ-cyclodextrin (γ-CD) have been examined by means of Ultraviolet-visible spectrometry and fluorescence spectroscopy. The formation constants (K) of BATPPH2 and BATPPZn for the inclusion complexes have been estimated from the absorbance and fluorescence intensity changes. The Kγ-CD value (7.20×105) of BATPPH2-γ-CD is bigger than that of the other two CDs, that indicates γ-CD have the strongest inclusion ability, zinc ion coordination destabilizes the inclusion complex of porphyrin and cyclodextrin. In addition 1H NMR data and 2D-NOESY spectra support the inclusion conformation of the supramolecular system(BATPPH2-γ-CD and BATPPZn-γ-CD). | |
| Keywords: porphyrin cyclodextrin supramolecular fluorescence spectroscopy ultraviolet-visible spectrometry 1H NMR | |
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| 王武林,赵鸿斌,宁静恒,胡 羽,张 辉,陆旭甲,叶领云.BATPPH2及其Zn配合物与环糊精的超分子体系研究[J].无机化学学报,2010,26(11):2025-2032. | |
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