TY - JOUR
T1 - Conversion of a singlet silylene to a stable biradical
AU - Mondal, Kartik Chandra
AU - Roesky, Herbert W.
AU - Schwarzer, Martin C.
AU - Frenking, Gernot
AU - Tkach, Igor
AU - Wolf, Hilke
AU - Kratzert, Daniel
AU - Herbst-Irmer, Regine
AU - Niepötter, Benedikt
AU - Stalke, Dietmar
PY - 2013/2/4
Y1 - 2013/2/4
N2 - 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-H activation and C-C bond formation in the presence of the biradical.
AB - 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-H activation and C-C bond formation in the presence of the biradical.
KW - EPR spectroscopy
KW - N-heterocyclic carbenes
KW - biradicals
KW - cyclic alkyl(amino)carbenes
KW - singlet silylenes
UR - http://www.scopus.com/inward/record.url?scp=84872743375&partnerID=8YFLogxK
U2 - 10.1002/anie.201204487
DO - 10.1002/anie.201204487
M3 - 文章
C2 - 23280727
AN - SCOPUS:84872743375
SN - 1433-7851
VL - 52
SP - 1801
EP - 1805
JO - Angewandte Chemie - International Edition
JF - Angewandte Chemie - International Edition
IS - 6
ER -