| Structure and Photosynthetic Mimicking of Bis（2,6—bis（benzimidazol—2—yl）pyridine）manganese（Ⅱ） |
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| 引用本文： | 施伟,李伟,沈萍萍,徐英凯,王红梅,石梅,刘扬.Structure and Photosynthetic Mimicking of Bis（2,6—bis（benzimidazol—2—yl）pyridine）manganese（Ⅱ）[J].中国化学,2003,21(6):659-664. |
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| 作者姓名： | 施伟 李伟 沈萍萍 徐英凯 王红梅 石梅 刘扬 |
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| 作者单位： | [1]StateKeyLaboratoryforStructuralChemistryofUnstableandStableSpecies,CenterofMolecularScience,InstituteofChemistry,ChineseAcademicofSciences,Beijing100080,China [2]StateKeyLaboratoryforStructuralChemistryofUnstableandStableSpecies,CenterofMolecularScience,InstituteofChemistry,ChineseAcademicofSciences,Beijing100080,China；StateKeyLaboratoryofPharmaceuticalbiotechnology,Departme [3]StateKeyLaboratoryofPharmaceuticalbiotechnology,Departmentofbiochemistry,NanjingUniversity,Nanjing,Jiangsu210008,China |
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| 摘 要： | Mn(bzimpy)2(1)bzimpy=2,6-bis(benzimidazol-2-yl)pyridine],a mononuclear manganese(Ⅱ）complex,was synthesized by the reaction of Mn(OOCMe)2 with bzimpy in absolute ethanol.The complex was structurally characterized by elemental analysis,cyclic voltammetry,and X-ray crystallography.In the complex,the manganese-nitrogen distances were different,and the geometry and the metal ion environment showed the distortion.The cyclic voltammetric measurements have been performed to assess its redox characteristics.The presence of oxidation wave at 0.62V and 0.081V vs.SCE or 0.8V and 1.0v vs.NHE suggested that this complex could catalyze the oxidation of water,therefore,simulate the water-oxidizing complex(WOC) of photosystem Ⅱ (PS Ⅱ).The measurements of photoreduction of 2,6-dichlorophenolindophenol (DCPIP),and oxygen evolution in the manganess-depleted and the comples 1-reconstituted PS Ⅱ preparations just support our conjecture.
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| 关 键 词： | 晶体结构 光合作用 光系统Ⅱ PSⅡ 模型 2（2，6－2（苯并咪唑－2）嘧啶）锰（Ⅱ） |
Structure and Photosynthetic Mimicking of Bis (2,6‐bis (benzimidazol‐2‐yl) pyridine) manganese (II) |
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| Shi Wei,Li Wei,Xu Ying‐Kai,Wang Hong‐Mei,Shi Mei,Liu Yang,Shen Ping‐Ping.Structure and Photosynthetic Mimicking of Bis (2,6‐bis (benzimidazol‐2‐yl) pyridine) manganese (II)[J].Chinese Journal of Chemistry,2003,21(6):659-664. |
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| Authors: | Shi Wei Li Wei Xu Ying‐Kai Wang Hong‐Mei Shi Mei Liu Yang Shen Ping‐Ping |
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| Abstract: | Mn(bzimpy)2(1) bzimpy = 2, 6‐bis (benzimidazol‐2‐yl) pyridine], a mononuclear manganese (IT) complex, was synthesized by the reaction of Mn (OOCMe)2 with bzimpy in absolute ethanol. The complex was structurally characterized by elemental analysis, cyclic voltammetry, and X‐ray crystallography. In the complex, the manganese‐nitrogen distances were different, and the geometry and the metal ion environment showed the distortion. The cyclic voltammetric measurements have been performed to assess its redox characteristics. The presence of oxidation wave at + 0.62 V and + 0.81 V vs. SCE or + 0.8 V and + 1.0 V vs. NHE suggested that this complex could catalyze the oxidation of water, therefore, simulate the water‐oxidizing complex (WOC) of photosystem II (PS II). The measurements of photoreduction of 2, 6‐dichlorophenolindophenol (DCPIP), and oxygen evolution in the manganese‐depleted and the complex 1‐reconstituted PS II preparations just support our conjecture. |
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| Keywords: | 2 6‐bis(benzimidazol‐2‐yl)pyridine (bzimpy) crystal structure photosynthetic mimiking |
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