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Conversion of a Singlet Silylene to a stable Biradical
Author(s) -
Mondal Kartik Chandra,
Roesky Herbert W.,
Schwarzer Martin C.,
Frenking Gernot,
Tkach Igor,
Wolf Hilke,
Kratzert Daniel,
HerbstIrmer Regine,
Niepötter Benedikt,
Stalke Dietmar
Publication year - 2013
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201204487
Subject(s) - carbene , silylene , singlet state , chemistry , alkyl , photochemistry , medicinal chemistry , silicon , combinatorial chemistry , organic chemistry , physics , catalysis , nuclear physics , excited state
Silicon becomes colored : Stable biradicals were prepared from an N‐heterocyclic carbene stabilized SiCl 2 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 CH activation and CC bond formation in the presence of the biradical.