CAJ | 학술논문

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]+[IAgI2]-,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.
상온하(MEIm)+I-(MEIm=1-methyl-3-ethyl-imidazolyl)여Ag2O안조물질적량비위1∶2재DMSO중반응성공적합성료선형담잡배잡빈은전화물[Ag(MEIm)2]+[IAgI2]-,화합물통과료원소분석,1H NMR,X-ray연사표정.배합물속우단사정계,공간군위C2/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.배합물유음양리자대구성,배양리자중2개잡빈탄원자여은원자정선형결구.목표화합물대L-lactide적취합구유고적최화활성.
The title complex [Ag(MEIm)2]+[AgI2]- (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=0.1426 for 728 observed reflections with I＞2σ(Ⅰ).The cation has a typical linear conformation of [Ag(carbine]+ 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.