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Transition‐Metal‐Mediated Cleavage of a SiSi Double Bond
Author(s) -
Hickox Hunter P.,
Wang Yuzhong,
Xie Yaoming,
Chen Mingwei,
Wei Pingrong,
Schaefer Henry F.,
Robinson Gregory H.
Publication year - 2015
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.201503069
Subject(s) - adduct , carbene , transition metal , cleavage (geology) , crystallography , chemistry , bond cleavage , metal , double bond , stereochemistry , materials science , catalysis , polymer chemistry , organic chemistry , fracture (geology) , composite material
Reaction of carbene‐stabilized disilicon ( 1 ) with Fe(CO) 5 gives the 1:1 adduct L:SiSi[Fe(CO) 4 ]:L (L:=C{N(2,6‐Pr i 2 C 6 H 3 )CH} 2 ) ( 2 ) at room temperature. At raised temperature, however, 2 may react with another equivalent of Fe(CO) 5 to give L:Si[μ‐Fe 2 (CO) 6 ](μ‐CO)Si:L ( 3 ) through insertion of both CO and Fe 2 (CO) 6 into the Si 2 core, which represents the first experimental realization of transition metal‐carbonyl‐mediated cleavage of a SiSi double bond. The structures and bonding of both 2 and 3 have been investigated by spectroscopic, crystallographic, and computational methods.