C. Grogger, H. Fallmann, G. Fürpaß, H. Stüger, G. Kickelbick:
"The [Cp(CO)2Fe] (Fp) group as a donor in donor/acceptor substituted disilanes: synthesis, structure and electronic properties of Fp---Si2Me4---C6H4CH=C(CN)2 ";
Journal of Organometallic Chemistry, 665 (2003), S. 186 - 195.

Kurzfassung englisch:
UV-vis absorption spectroscopy and cyclic voltammetry are used to study electronic interactions in the donor/acceptor substituted disilane Fp---Si2Me4---C6H4CH=C(CN)2 (Fp=5-C5H5Fe(CO)2) (1). The synthesis of 1 was achieved by a conventional chemical route, the model substances Fp---SiMe3 (2), Fp---Si2Me5 (3) and Fp---Si2Me4C6H5 (4) were obtained by the electrolysis of Fp2 in the presence of the appropriate chlorosilane. The structure of 1, determined by X-ray diffraction, exhibits an all-trans-array of the Fe---Si---Si---Caryl fragment, a basic requirement for optimal through-bond interaction. UV-vis and CV data indicate strong intramolecular donor/acceptor interaction in 1.

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