| 以2-(1-吡唑基甲基)吡啶类化合物为配体的羰基钼、钨衍生物的合成及结构(英文) |
| Synthesis and Structure of Carbonyl Molybdenum and Tungsten Derivatives Containing 2-(Pyrazol-1-ylmethyl)pyridine |
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| 摘要: 合成了2-[1-(3-叔丁基)吡唑基甲基]吡啶(CH2(Py)(3-ButPz))，并研究了羰基钼(钨)与该配体及其类似物2-(1-吡唑基甲基)吡啶(CH2(Py)(Pz))和2-[1-(3，5-二甲基)吡唑基甲基]吡啶(CH2(Py)(3，5-Me2Pz))的反应，合成了6个含双齿螯合的2-(1-吡唑基甲基)吡啶类配体的四羰基金属衍生物CH2(Py)(3-ButPz)M(CO)4，CH2(Py)(Pz)M(CO)4和CH2(Py)(3,5-Me2Pz)M(CO)4(M=Mo或W)。当用SnCl4处理CH2(Py)(3，5-Me2Pz)M(CO)4时，Sn-Cl键对金属中心发生氧化加成得到2个杂双核金属有机化合物CH2(Py)(3，5-Me2Pz)M(CO)3(Cl)SnCl3。所有新化合物均通过了红外和核磁的表征，CH2(Py)(3-ButPz)W(CO)4和CH2(Py)(3，5-Me2Pz)W(CO)3(Cl)SnCl3的结构还得到了X-射线单晶衍射的确证。用循环伏安法测定了四羰基金属衍生物的电化学性质。 |
| 关键词: 吡唑 吡啶 2-(1-吡唑基甲基)吡啶 第六族羰基金属化合物 |
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| Abstract: 2-(3-tert-Butylpyrazol-1-ylmethyl)pyridine (CH2(Py)(3-ButPz), Py=2-pyridyl and Pz=pyrazol-1-yl) has been prepared by the reaction of 3-tert-butylpyrazole and 2-chloromethylpyridine-HCl under basic conditions. Reaction of CH2(Py)(3-ButPz) and its analogs, namely CH2(Py)(Pz) and CH2(Py)(3,5-Me2Pz), with M(CO)6(M=Mo or W) has been investigated, which yields six bidentate chelating complexes CH2(Py)(3-ButPz)M(CO)4, CH2(Py)(Pz)M(CO)4 and CH2(Py)(3,5-Me2Pz)M(CO)4. Treatment of CH2(Py)(3,5-Me2Pz)M(CO)4 with SnCl4 gives heterobimetallic complexes CH2(Py)(3,5-Me2Pz)M(CO)3(Cl)SnCl3. These newly synthesized complexes have been characterized by IR and NMR spectroscopy, and the structures of CH2(Py)(3-ButPz)W(CO)4 and CH2(Py)(3,5-Me2Pz)W(CO)3(Cl)SnCl3 have been further confirmed by X-ray crystal diffraction. The electrochemical behavior of CH2(Py)(3-ButPz)M(CO)4, CH2(Py)(Pz)M(CO)4 and CH2(Py)(3,5-Me2Pz)M(CO)4 has been investigated by cyclic voltammetry. CCDC: 820993, 6; 820994, 8. |
| Keywords: pyrazole pyridine 2-(pyrazol-1-ylmethyl)pyridine group 6 metal carbonyl complex |
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| 陆继廷,陈丹峰,宋海斌,唐良富.以2-(1-吡唑基甲基)吡啶类化合物为配体的羰基钼、钨衍生物的合成及结构(英文)[J].无机化学学报,2011,27(9):1830-1836. |
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