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化学学报
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化学学报 ›› 1995, Vol. 53 ›› Issue (11): 1131-1136. 上一篇    下一篇

研究论文

硅基取代及硅桥连双环戊二烯基四羰基二铁与HgCl2的反应及产物结构研究

谢文华;周秀中;徐善生;王宏根;王如骥   

  1. 南开大学化学系;南开大学中心实验室
  • 发布日期:1995-11-15

Reaction of silyl-substituted and sila-bridged biscyclopentadienyl tetracarbonyl diiron with HgCl2 and structures of the products

XIE WENHUA;ZHOU XIUZHONG;XU SHANSHENG;WANG HONGGEN;WANG RUJI   

  • Published:1995-11-15

PDF

367

被引次数

10

二(硅基取代环戊二烯基)四羰基二铁化合物[η^5-RC5H4Fe(CO)]2(μ-CO)2(R=SiMe3, 1; Si2Me5, 2)与HgCl2反应得到的预期的Fe-Fe键被断裂的铁氯化物6(R=SiMe3)和8(R=Si2Me5)及铁氯汞化物5(R=SiMe3)和7(R=Si2Me5)。硅桥连的类似物R^1[η^5-C5H4Fe(CO)]2(μ-CO)2(R^1=SiMe2, 3; SiMe2OSiMe2, 4)。由上述反应除得到预期产物外, 还分离到相应的歧化产物R^1[[η^5-C5H4Fe(CO)2HgCl](R^1=SiMe2, 10; SiMe2OSiMe2, 13)与R^1[η^5-C5H4Fe(CO)2Cl]2(R^1=SiMe2, 11; SiMe2OSiMe2, 14), 讨论了歧化产物的生成原因。对产物5-14的结构用元素分析、IR, ^1H NMR 进行了表征, 并测定了5的晶体结构。5为单斜晶系, 空间群P21/n, a=1.1648(3), b=0.7484(4),c=1.6823(5)nm, β=106.55(2)°, V=1.405(2)nm^3, Z=4, Dx=2.29g.cm^-^3。

关键词: 红外分光光度法, 元素分析, 环戊二烯 P, 铁络合物, 歧化反应, 质子磁共振谱法, 羰基化合物, 氯化汞, 国家教委高等学校博士学科点专项科研基金

Reactions of bis(silylcyclopentadienyl) tetracarbonyl diiron compounds [η^5-RC5H4Fe(CO)]2(μ-CO)2(R=SiMe3, 1; Si2Me5, 2) with HgCl2 resulted in cleavage of Fe-Fe bond and gave expected products 5-8, while from the corresponding reactions of bridged analogues R^1[η ^5-RC5H4Fe(CO)]2(μ-CO)2(R^1=SiMe2, 3; SiMe2OSiMe2, 4), unexpected products of disproportionation were isolated, as well as the expected ones. The occurrence of the disproportionation was investigated. All the products were characterized by IR, ^1H NMR and elemental analysis. The crystal structure of 5 was determined. The crystals of 5 are monoclinic, space group P2/1m with a=1.1648(3), b=0.7484(4), c=1.6823(5)nm and β=106.55(2)°, V=1.405(2)nm^3, Z=4, Dx=2.29g.cm^-^3.

Key words: INFRARED SPECTROPHOTOMETRY, ELEMENTAL ANALYSIS, CYCLOPENTADIENE P, IRON COMPLEX, DISPROPORTIONATION REACTION, PROTON MAGNETIC RESONANCE SPECTROMETRY, CARBONYL COMPOUNDS, MERCURY CHLORIDE

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