Bi- and tridentate silicon-based acceptor molecules

Horstmann J, Lamm J-H, Strothmann T, Neumann B, Stammler H-G, Mitzel NW (2017)
Zeitschrift für Naturforschung. Section B 72(6): 383-391.

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Abstract
Triethynylphenylsilane (1), trivinylphenylsilane (2), diethynyldiphenylsilane (3) and diphenyldivinylsilane (4) were reacted with chlorodimethylsilane yielding the corresponding hydrosilylation products. To increase their Lewis acidity, the Si-Cl functions were directly transferred into Si-C6F5 units by salt elimination reactions leading to the (semi-) flexible molecules 5-8 bearing two or three Lewis-acidic sidearms. With the aim of providing host-guest complexes, the air-stable and readily soluble compounds 5-8 were converted with N- and O-Lewis bases of different size and geometry. In all cases, NMR spectroscopic investigations reveal no formation of Lewis acid-base complexes. X-ray diffraction experiments of host compounds 5-7 show intermolecular aryl...perfluoroaryl interactions of dispersion nature in the solid state. By hydrosilylation of 1 with trichlorosilane the more Lewis-acidic all-trans-tris[(trichlorosilyl) vinyl] phenylsilane (9) was obtained. Its Lewis acidity was further increased by fluorination to yield all-trans-tris[(trifluorosilyl) vinyl] phenylsilane (10); the conversion with nitrogen containing Lewis bases ends up in the formation of insoluble precipitates.
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Horstmann J, Lamm J-H, Strothmann T, Neumann B, Stammler H-G, Mitzel NW. Bi- and tridentate silicon-based acceptor molecules. Zeitschrift für Naturforschung. Section B. 2017;72(6):383-391.
Horstmann, J., Lamm, J. - H., Strothmann, T., Neumann, B., Stammler, H. - G., & Mitzel, N. W. (2017). Bi- and tridentate silicon-based acceptor molecules. Zeitschrift für Naturforschung. Section B, 72(6), 383-391. doi:10.1515/znb-2017-0031
Horstmann, J., Lamm, J. - H., Strothmann, T., Neumann, B., Stammler, H. - G., and Mitzel, N. W. (2017). Bi- and tridentate silicon-based acceptor molecules. Zeitschrift für Naturforschung. Section B 72, 383-391.
Horstmann, J., et al., 2017. Bi- and tridentate silicon-based acceptor molecules. Zeitschrift für Naturforschung. Section B, 72(6), p 383-391.
J. Horstmann, et al., “Bi- and tridentate silicon-based acceptor molecules”, Zeitschrift für Naturforschung. Section B, vol. 72, 2017, pp. 383-391.
Horstmann, J., Lamm, J.-H., Strothmann, T., Neumann, B., Stammler, H.-G., Mitzel, N.W.: Bi- and tridentate silicon-based acceptor molecules. Zeitschrift für Naturforschung. Section B. 72, 383-391 (2017).
Horstmann, Jan, Lamm, Jan-Hendrik, Strothmann, Till, Neumann, Beate, Stammler, Hans-Georg, and Mitzel, Norbert W. “Bi- and tridentate silicon-based acceptor molecules”. Zeitschrift für Naturforschung. Section B 72.6 (2017): 383-391.
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