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化学学报
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化学学报 ›› 1990, Vol. 48 ›› Issue (11): 1141-1146. 上一篇    

研究论文

醋酸乙烯酯基桥连铁硫配合物(σ,π-μ-CH3CO2C=CH2)(μ-RS)Fe2CO)6的制备及结构鉴定

宋礼成;王如骥;刘金亭;王宠根;王积涛   

  1. 南开大学测试计算中心
  • 发布日期:1990-11-15

A novel preparation of route and structural characterization of Fe-S complexes with bridging vinylidene acetate (σ,π-μ-CH3CO2C=CH2)(μ -RS)Fe2(co)6

SONG LICHENG;WANG RUJI;LIU JINTING;WANG CHONGGEN;WANG JITAO   

  • Published:1990-11-15

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本文报道乙酰氯同[μ-CO)(μ-RS)Fe2(CO]Et3NH相作用生成了标题化合物, 除用碳氢分析, IR, 'HNMR及X衍射技术表征这类配合物的结构和构象外, 还对形成此类产物的过程进行了初步讨论。

关键词: 晶体结构测定, 反应机理, 红外分光光度法, Ｘ射线衍射分析, 铁络合物, 酰氯, 质子磁共振谱法, 质子磁共振谱法, 乙酸乙烯酯, 硫络合物

Unexpectedly, a class of Fe-S complexes containing a bridging vinylidene acetate ligand, i.e. (s,p-m-CH3CO2C:CH2)(m-RS)Fe2(CO)6 (I, R = Et, Me3C, Ph), were prepared by reaction of acetyl chloride with an active salt of [(m-CO)(m-RS)Fe2(CO)6]Et3NH formed from Fe3(CO)12, RSH, and Et3N. The structures and conformations of these complexes were characterized by elemental anal., IR, 1H NMR, and x-ray diffraction techniques and the mechanism of their formation was discussed briefly. The crystal structure of I (R = Ph) was determine A kind of s-interaction occurs between the carbon atom bearing the acetate group and one iron atom whereas a p-interaction occurs between carbon-carbon double bond and another iron atom. The Fe-Fe bond length is 2.553(1) ?

Key words: CRYSTAL STRUCTURE DETERMINATION, REACTION MECHANISM, INFRARED SPECTROPHOTOMETRY, X-RAY DIFFRACTION ANALYSIS, IRON COMPLEX, ACYL CHLORIDES, PROTON MAGNETIC RESONANCE SPECTROMETRY, PROTON MAGNETIC RESONANCE SPECTROMETRY, ACETIC ACID ETHENYL ESTER, SULFIDE COMPLEX

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