Resumen

CERVANTES-LEE, Francisco; KAPOOR, Ramesh N.  y  PANNELL, Keith H.. Síntesis y caracterización de oligosilanos complejos en el sistema pentametilciclopentadienil dicarbonilo de fierro: [η⁵-C₅(CH₃)₅]Fe(CO)₂Si_n(Si_n = SiMe₃; Si₂Me₅; Si₃Me₇; y 2-Si₃Me₇). Rev. Soc. Quím. Méx [online]. 2000, vol.44, n.2, pp.122-127. ISSN 0583-7693.

Complexes of the general type [η⁵-C₅(CH₃)₅]Fe(CO)₂Si_n (Si_n = SiMe₃; Si₂Me₅; Si₂Me₇ and 2-Si₃Me₇) have been synthesized and characterized via ¹H ¹³C, ²⁹Si NMR, infrared spectroscopy and X-ray crystallography. The molecular geometry of these complexes is compared to that of the corresponding analogs in the indenyliron dicarbonyl system. It was found that the higher electron density donor capacity and larger size of the [η⁵-C₅(CH₃)₅] group compared to those of [η⁵-C₉H₇] do not influence significantly the nature of the Fe-Si bond.

Palabras llave : Synthesis; transitions metals; molecular geometry; iron complexes; organosilicon.