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1,2-二(3-甲基环戊二烯基)四甲基二硅烷与五羰基铁在二甲苯中加热回流,即生成标题化合物(Me_2SiSiMe_2)[η-MeC_5H_3Fe_(CO)]_2(μ-CO)_2(1).1在加热反应条件下可重排为1的异构体[Me_2Si-η-MeC_5H_3Fe(CO)_2]_2,2.1与碘反应生成Fe—Fe键断裂的双铁碘化物.1经纳-汞齐还原所生成的双铁负离子分别与卤代烃、酰氯及三苯基氯化锡作用,生成在铁原子上引入烃基、酰基及三苯基锡的衍生物。用X射线衍射测定了2的晶体及分子结构。晶体属单斜晶系,空间群P2_1/n,晶体学数据α=11.088(3),b=7.664(2),C=13.497(4);β=105.18(2)°,V=1106.9~3,z=2,D_c=1.49g·cm~(-3)。偏差因子R=0.039.
1,2-bis (3-methylcyclopentadienyl) tetramethyldisilane and iron pentacarbonyl are heated under reflux in xylene to give the title compound (Me_2SiSiMe_2) [η-MeC_5H_3Fe_ (CO)] _2 -CO) _2 (1) .1 The isomer [Me_2Si-η-MeC_5H_3Fe (CO) _2] _2,2.1, which can be rearranged to 1 under the heating reaction, reacts with iodine to form Fe-Fe bond, .1 The double iron anions formed by the amalgam reduction are respectively reacted with halogenated hydrocarbons, acid chlorides and triphenyltin chloride to form derivatives which introduce hydrocarbon groups, acyl groups and triphenyltin on iron atoms. The crystal and molecular structure of 2 were measured by X-ray diffraction. The crystal is monoclinic with space group P2_1 / n, crystallographic data α = 11.088 (3), b = 7.664 (2), C = 13.497 (4); β = 105.18 (2) °, V = 1106.9-3 , z = 2, D_c = 1.49g · cm ~ (-3). Deviation factor R = 0.039.