| Two Amine-tethered Imidazolium NHC Ni(Ⅱ) Complexes: Synthesis,Structure and Catalytic Activity |
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| 作者姓名： | YUAN Wei-Guan TANG Wei ZHANG Hong-Ling ZHAO Bo XIONG Fang JING Lin-Hai QIN Da-Bin |
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| 作者单位： | Key Laboratory of Chemical Synthesis and Pollution Control of Sichuan Province, School of Chemistry and Chemical Engineering, China West Normal University, Nanehong 637002, China |
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| 基金项目： | This work was supported by the National Natural Science Foundation of China （21102117）, the Education Department of Sichuan Province （09ZX010）, and the College Student Science and Technology Innovation Key Foundation of China West Normal University |
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| 摘 要： | Nickel(Ⅱ) complexes Ni(L1)2(1) and Ni(L2)2·CH3CN·H2O(2)(L1Cl = 2-(3-benzyl-2,3-dihydroimidazlo-1-yl)-N-(pyridin-2-yl)acetamide, chloride salt, L2Cl = 2-(3-naphthalene-2-ylmethyl)-2,3-dihydro-imidazlo-1-yl)-N-phenylacetamide, chloride salt) with amide-functionalized imidazolium NHC ligand were synthesized and determined by single-crystal X-ray diffraction. Complex 1 crystallizes in the monoclinic system, space group P21/c with a = 9.2561(19), b = 15.138(3), c = 20.750(4) , β = 90.216(3)°, V = 2907.3(10) 3 and Z = 4. Complex 2 crystallizes in the orthorhombic system, space group Pbca with a = 15.5469(16), b = 15.3521(15), c = 31.177(3) , V = 7441.2(13) 3 and Z = 8. They are stable in the air and formed via intermolecular weak interactions, including C–H···π contacts and C–H···O hydrogen bonds. Complex 1 was applied in Suzuki coupling reaction through the investigation of reaction conditions under the optimal choice conditions: 80 ℃, K3PO4, 3% mol catalysts, 6% mol PPh3 and toluene as solvent system could afford 96% yield in 5 h.
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| 关 键 词： | 配合物 乙酰胺 Ni 催化性能 合成 咪唑 Suzuki偶联反应 单晶X-射线衍射 |
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