| 氮杂环卡宾银碘化物[Ag(MEIm)2]+[AgI2]-的合成、结构与催化性能(MEIm=1-methyl-3-ethyl-imidazolyl) |
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| 引用本文： | 王志国,边清泉,黄宝美,邓 毅,刘思曼.氮杂环卡宾银碘化物[Ag(MEIm)2]+[AgI2]-的合成、结构与催化性能(MEIm=1-methyl-3-ethyl-imidazolyl)[J].无机化学学报,2012,28(1):191-194. |
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| 作者姓名： | 王志国 边清泉 黄宝美 邓 毅 刘思曼 |
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| 作者单位： | 绵阳师范学院化学与化学工程学院,绵阳,621000 |
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| 基金项目： | 四川省科技厅应用基础基金 |
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| 摘 要： | 常温下(MEIm)+I-(MEIm=1-methyl-3-ethyl-imidazolyl)与Ag2O按照物质的量比为1∶2在DMSO中反应成功的合成了线型氮杂环卡宾银碘化物Ag(MEIm)2]+AgI2]-,化合物通过了元素分析,1H NMR,X-ray衍射表征。配合物属于单斜晶系,空间群为C2/m,a=1.592 5(4)nm,b=0.679 07(14)nm,c=0.927 1(2)nm,β=110.247(5)°,V=0.940 7(4)nm3,Mr=689.86,Z=8,Dc=2.436 g.cm-3,μ(Mo Kα)=5.36 mm-1,F(000)=640,R=0.036,wR=0.105。配合物由阴阳离子对构成,配阳离子中2个卡宾碳原子与银原子呈线型结构。目标化合物对L-lactide的聚合具有高的催化活性。
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| 关 键 词： | 氮杂环 卡宾 银 晶体结构 催化性能 |
Synthesis, Crystal Structure and Catalytic Behavior of Linear N-heterocyclic Carbene Silver [Ag(MEIm)2]+[AgI2]- (MEIm=1-methyl-3-ethyl-imidazolyl) |
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| WANG Zhi-Guo,BIAN Qin-Quan,HUANG Bao-Mei,DENG Yi and LIU Si-Man.Synthesis, Crystal Structure and Catalytic Behavior of Linear N-heterocyclic Carbene Silver [Ag(MEIm)2]+[AgI2]- (MEIm=1-methyl-3-ethyl-imidazolyl)[J].Chinese Journal of Inorganic Chemistry,2012,28(1):191-194. |
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| Authors: | WANG Zhi-Guo BIAN Qin-Quan HUANG Bao-Mei DENG Yi and LIU Si-Man |
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| Institution: | Department of Chemistry and Chemical Engineering, Mianyang Normal University, Mianyang, Sichuan 621000, China,Department of Chemistry and Chemical Engineering, Mianyang Normal University, Mianyang, Sichuan 621000, China,Department of Chemistry and Chemical Engineering, Mianyang Normal University, Mianyang, Sichuan 621000, China,Department of Chemistry and Chemical Engineering, Mianyang Normal University, Mianyang, Sichuan 621000, China and Department of Chemistry and Chemical Engineering, Mianyang Normal University, Mianyang, Sichuan 621000, China |
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| Abstract: | The title complex Ag(MEIm)2]+Agl2]-(MEIm=1-methyl-3-ethyl-imidazolyl) has been synthesized by the reaction of Ag2O with(MEIm)+I-in a 1∶2 molar ratio at room temperature in DMSO,and characterized by elemental analysis,1H NMR and single-crystal X-ray diffraction analysis.It crystallizes in monoclinic system,space group C2/m with a=1.592 5(4) nm,b=0.679 07(14) nm,c=0.927 1(2) nm,β=110.247(5)°,V=0.940 7(4) nm3,Mr=689.86,Z=8,Dc=2.436 g·cm-3,μ(Mo Kα)=5.36 mm-1 and F(000)=640.The structure was refined to R=0.036 6 and wR=0.142 6 for 728 observed reflections with I>2σ(I).The cation has a typical linear conformation of Ag(carbine)2]+ with a C-Ag-C angle of 180°.The catalytic behavior of the title complex has been investigated,the results indicate the title complex has a highly catalytic activation for L-lactide polymerization.CCDC: 843657. |
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| Keywords: | N-heterocyclic carbene carbene silver crystal structure catalytic behavior |
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