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含Fe3S3簇核的两个异构体化合物的合成和结构研究
Investigation on Synthesis and Structure of Two Isomeric Compounds Containing a Fe3S3 Cluster Centre
【摘要】 用氯化亚铁、苯硫酚钠及溴化四乙基铵在乙腈溶液中,经一步反应,得到两个同分异构的化合物α-[Et4N]3[Fe3(PhS)3Cl3Br3]1和β-[Et4N]3[Fe3(PhS)3Cl3Br3]2.X 射线晶体结构测定表明,1和2的阴离子骨架为3Fe、3S 交叉排列的六元环,前者为扭船型,后者为椅型.1属单斜晶系,空间群 C2/c,晶胞参数:a=24.569(4),b=13.504(2),c=18.348(3)■,β=110.78(1)°.Z=4,R=0.070.2属三方晶系,空间群 Pucl,晶胞参数:a=b=13.720(3),c=35.748(5)(■.Z=4,R=0.059.讨论了反应和结构特点.
【Abstract】 Two isomeric compounds α-[Et4N]3 [Fe3(PhS)3Cl3Br3](1)and β-[Et4N]3[Fe3(PhS)3·Cl3Br3](2)have been synthesized through one step reaction of iron(II)chloride withsodiun phenylthiolate and tetraethylammonium bromide in acetonitrile.The skeletonsof anions in compounds 1 and 2 are six membered rings with alternative Fe and Sarrangement,the former exists in twist boat form and the latter in chair one.The crystal of 1 is monoclinic,with space group C2/c,a=24.569(4),b=13.504(2),c=18.348(3)(?),β=110.78(1)°,Z=4,R=0.070.The crystal of 2 is trigonal,withspace group P(?)c1,a=b=13.720(3),c=35.748(5)(?),Z=4,R=0.059.The characteri-stics of the roaction and structure have been discussed.
- 【文献出处】 化学学报 ,Acta Chimica Sinica , 编辑部邮箱 ,1988年10期
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