Premium
A Triatomic Silicon(0) Cluster Stabilized by a Cyclic Alkyl(amino) Carbene
Author(s) -
Mondal Kartik Chandra,
Roy Sudipta,
Dittrich Birger,
Andrada Diego M.,
Frenking Gernot,
Roesky Herbert W.
Publication year - 2016
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.201511019
Subject(s) - carbene , chemistry , alkyl , silicon , triatomic molecule , crystallography , molecule , adduct , catalysis , organic chemistry
Reduction of the neutral carbene tetrachlorosilane adduct (cAAC)SiCl 4 (cAAC=cyclic alkyl(amino) carbene :C(CMe 2 ) 2 (CH 2 )N(2,6‐iPr 2 C 6 H 3 ) with potassium graphite produces stable (cAAC) 3 Si 3 , a carbene‐stabilized triatomic silicon(0) molecule. The Si−Si bond lengths in (cAAC) 3 Si 3 are 2.399(8), 2.369(8) and 2.398(8) Å, which are in the range of Si−Si single bonds. Each trigonal pyramidal silicon atom of the triangular molecule (cAAC) 3 Si 3 possesses a lone pair of electrons. Its bonding, stability, and electron density distributions were studied by quantum chemical calculations.