高等学校化学学报

高等学校化学学报 ›› 1994, Vol. 15 ›› Issue (11): 1629.

• 论文 • 上一篇    下一篇

(四甲基二硅撑)二(3-三甲硅基环戊二烯基)四羰基二铁及其相关化合物的合成及结构

孔垂华1, 徐善生2, 周秀中2   

  1. 1. 华南农业大学生态研究所;
    2. 南开大学化学系, 夭津, 300071
  • 收稿日期:1994-01-21 修回日期:1994-04-07 出版日期:1994-11-24 发布日期:1994-11-24
  • 通讯作者: 周秀中.
  • 作者简介:孔垂华,男,31岁,博士,讲师.
  • 基金资助:

    国家自然科学基金;国家教育委员会博士学科点基金

Synthesis and Structure of Tetramethyldisilandiyl Bis(3-trimethylsilylcyclopentadienyl)Tetracarbonyl Di-Iron and Its Related Compounds

KONG Chui-Hua1, XU Shan-Sheng2, ZHOU Xiu-Zhong2   

  1. 1. Ecology Institute, South China Agricultural University;
    2. Department of Chemistry, Nankai University, Tianjin, 300071
  • Received:1994-01-21 Revised:1994-04-07 Online:1994-11-24 Published:1994-11-24

PDF (PC)

被引次数

4

摘要： 1,2-二(三甲硅基环戊二烯基)四甲基二硅烷与Fe(CO)5在二甲苯中于105～110℃反应除分离到少量标题化合物(Me2SiSiMe2)[η-(3-Me3SiC5H3Fe(CO)]2(μ-CO)2(5)外,主要是生成了脱Me3Si基的产物(Me2SiSiMe2)[η-C5H4Fe(CO)]2(μ-CO)2(1)及1的热重排异构体[Me2SiC5H4-Fe(CO)2]2(2).将5的二甲苯溶液加热回流18h,则转化为其异构体[Me2Si(Me3SiC5H3)Fe(CO)2]2(6).脱硅基发生在由相应反应物制备5的过程中。且脱硅基是与反应物中(Me2SiSiMe2)桥的存在有关。5的晶体结构经X射线衍射测定属单斜晶系,P21/m空间群,晶体学数据:a=0.6780(1)nm,b=2.2303(9)nm,c=0.9988(1)nn,;β=98.96(1)°,V=1.4960nm3.Z=2,Dc=1.36g/cm3.

关键词: 1, 2－二(3－三甲硅基环戊二烯基)四甲基二硅烷, 热重排反应, 脱硅基反应

Abstract: Asmall amount of the title compound 5(5%)and a desilylated complex(Me2SiSiMe2)[C5H4Fe(CO)]2(μ-CO)2(1)(3%)and its rearrangement isomer[Me2SiC5H4Fe(CO)2]2(2)(16%) were obtained from the reaction of 1, 2-bis(3-trimethylsilylcyclopentadienyl)tetramethyldisilane with Fe (CO)5 at 105110℃.When a xylene solution of 5 was refluxed for 18h, compound [Me2Si(3-Me3Si-C5H3)Fe(CO)2]2(6), as a rearrangement isomer of 5 was obtained in58% yield.It was proved that desilylation of Me3Sioccured in the process of preparing5 and desilylation is related to the(Me2SiSiMe2)-bridge of the reactant.The crystal structure of 5 was determined by X-ray diffraction, The crystal is monoclinic, space group P21/m with a=0.6780(1)nm, b=2.2303(9)nm, c=0.9988(1)nm, β=98.96(1)°, V=1.496 nm3, 2=2, Dc=1.36 g/cm3.The final deviation factor Ris0.044.

Key words: Bis(3-trimethylsilylcyclopentadienyl) tetramethyldisilane, Thermal rearrangement reaction, Desilylation

TrendMD: