From Bidentate Gallium Lewis Acids to Supramolecular Complexes

Horstmann J, Hyseni M, Mix A, Neumann B, Stammler H-G, Mitzel NW (2017)
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 56(22): 6107-6111.

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Abstract
Bidentate gallium Lewis acids were prepared by the reaction of diethynyldiphenylsilane with neat trimethyl-or triethylgallium. Bis[(dimethylgallyl)ethynyl]diphenylsilane (1) and diethylgallyl derivative 2 were characterized as Et2O or pyridine adducts by NMR spectroscopy; 2.2Py was isolated. Lewis acids 1 and 2 form host-guest adducts with bidentate nitrogen bases, but defined cyclic 1: 1 adducts are only formed between 1 and bases with matching N center dot center dot center dot N distances: 4,4'-dimethyl-3,3'-bipyridinylacetylene (3), bis[(pyridin-3-yl)ethynyl]diphenylsilane (4), and bis[(2-methylpyridin-5-yl)ethynyl]diphenylsilane (5). The structures of adducts 1.3, 1.4, and 1.5 were established by X-ray diffraction experiments. 2.2Py reacts with DABCO to afford polymeric (DABCO-2-)(n).
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Horstmann J, Hyseni M, Mix A, Neumann B, Stammler H-G, Mitzel NW. From Bidentate Gallium Lewis Acids to Supramolecular Complexes. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION. 2017;56(22):6107-6111.
Horstmann, J., Hyseni, M., Mix, A., Neumann, B., Stammler, H. - G., & Mitzel, N. W. (2017). From Bidentate Gallium Lewis Acids to Supramolecular Complexes. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 56(22), 6107-6111. doi:10.1002/anie.201701303
Horstmann, J., Hyseni, M., Mix, A., Neumann, B., Stammler, H. - G., and Mitzel, N. W. (2017). From Bidentate Gallium Lewis Acids to Supramolecular Complexes. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 56, 6107-6111.
Horstmann, J., et al., 2017. From Bidentate Gallium Lewis Acids to Supramolecular Complexes. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 56(22), p 6107-6111.
J. Horstmann, et al., “From Bidentate Gallium Lewis Acids to Supramolecular Complexes”, ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, vol. 56, 2017, pp. 6107-6111.
Horstmann, J., Hyseni, M., Mix, A., Neumann, B., Stammler, H.-G., Mitzel, N.W.: From Bidentate Gallium Lewis Acids to Supramolecular Complexes. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION. 56, 6107-6111 (2017).
Horstmann, Jan, Hyseni, Mentor, Mix, Andreas, Neumann, Beate, Stammler, Hans-Georg, and Mitzel, Norbert W. “From Bidentate Gallium Lewis Acids to Supramolecular Complexes”. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 56.22 (2017): 6107-6111.
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