Conversion of a singlet silylene to a stable biradical.

Mondal, K. C.; Roesky, H. W.; Schwarzer, M. C.; Frenking, G.; Tkach, I.; Wolf, H.; Kratzert, D.; Herbst-Irmer, R.; Niepçtter, B.; Stalke, D.

doi:10.1002/anie.201204487

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Conversion of a singlet silylene to a stable biradical.

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Tkach, I.
Research Group of Electron Paramagnetic Resonance, MPI for biophysical chemistry, Max Planck Society;

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Citation

Mondal, K. C., Roesky, H. W., Schwarzer, M. C., Frenking, G., Tkach, I., Wolf, H., et al. (2013). Conversion of a singlet silylene to a stable biradical. Angewandte Chemie International Edition, 52(6), 1801-1805. doi:10.1002/anie.201204487.

Cite as: https://hdl.handle.net/11858/00-001M-0000-000E-802F-B

Abstract

Silicon becomes colored: Stable biradicals were prepared from an N-heterocyclic carbene stabilized SiCl2 and a cyclic alkyl(amino)carbene, and characterized as two polymorphs. The deep-blue crystals of one polymorph are stable upon exposure to air for about a week, while the solution in THF decomposes rapidly when exposed to air. In a side reaction, the different carbene species react with each other under C[BOND]H activation and C[BOND]C bond formation in the presence of the biradical.