氮杂环卡宾羰基氯钌配合物的合成、晶体结构及催化性质 |
Synthesis, Crystal Structure and Catalytic Properties of Ruthenium Complexes Bearing N-heterocyclic Carbene Ligand |
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摘要: 合成了2个N-杂环卡宾钌配合物[RuCl2(L1)(CO)](1),L1=(2,6-二(甲基咪唑-2-鎓盐)吡啶)和[RuCl2(L2)(CO)](2),L2=(2,6-二(正丁基-2-鎓盐)吡啶),并通过元素分析、红外光谱、核磁共振氢谱和核磁共振碳谱对它们的结构进行了表征,X-射线单晶衍射测定了配合物2的分子结构,结果表明配合物2属单斜晶系,C2/c空间群,a=1.8148(4)nm,b=1.1292(3)nm,c=1.1196(2)nm,β=108.862(3)°,且中心Ru(Ⅱ)离子是六配位,同时研究了配合物1和2在Suzuki-Miyaura偶联反应中的催化性质。 |
关键词: N-杂环卡宾 钌配合物 晶体结构 催化性能 |
基金项目: 国家自然科学基金(No.21276147)资助项目;山东省自然科学基金(No.ZR2012BQ003)资助项目。 |
Abstract: Two new N-heterocyclic carbene ruthenium(Ⅱ) complexes [RuCl2(L1)(CO)] (1) L1=(2, 6-bis(methyli-midazol-2-ylidene)pyridine) and [RuCl2(L2)(CO)] (2) L2=(2,6-bis(butylimidazol-2-ylidene)pyridine), have been synthesized and fully characterized by elemental analysis, IRspectra, 1H NMRand 13C NMR. The structure of complex 2 has been determined by X-ray crystallography. Complex 2 crystallizes in the Monoclinic system with C2/c space group, a=1.8148(4) nm, b=1.1292(3) nm, c=1.1196(2) nm, β=108.862(3) °, and the central Ru(Ⅱ) ion is six-coordinated. The catalytic activities of complexes 1 and 2 in the Suzuki-Miyaura cross-coupling reaction have been investigated. CCDC: 928614. |
Keywords: N-heterocyclic carbene ruthenium complex crystal structure catalysis property |
投稿时间:2013-07-14 修订日期:2014-02-17 |
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李晓微,王晓斌,徐会君,于先进,禚淑萍.氮杂环卡宾羰基氯钌配合物的合成、晶体结构及催化性质[J].无机化学学报,2014,30(6):1381-1387. |
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