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Dispersion‐Force‐Assisted Disproportionation: A Stable Two‐Coordinate Copper(II) Complex
Author(s) -
Wagner Clifton L.,
Tao Lizhi,
Thompson Emily J.,
Stich Troy A.,
Guo Jingdong,
Fettinger James C.,
Berben Louise A.,
Britt R. David,
Nagase Shigeru,
Power Philip P.
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.201605061
Subject(s) - disproportionation , chemistry , dispersion (optics) , copper , halide , london dispersion force , transition metal , electron paramagnetic resonance , solvent , crystallography , medicinal chemistry , inorganic chemistry , molecule , organic chemistry , nuclear magnetic resonance , catalysis , physics , van der waals force , optics
The synthesis of the first linear coordinated Cu II complex Cu{N(SiMe 3 )Dipp} 2 ( 1 Dipp=C 6 H 5 ‐2,6Pr i 2 ) and its Cu I counterpart [Cu{N(SiMe 3 )Dipp} 2 ] − ( 2 ) is described. The formation of 1 proceeds through a dispersion force‐driven disproportionation, and is the reaction product of a Cu I halide and LiN(SiMe 3 )Dipp in a non‐donor solvent. The synthesis of 2 is accomplished by preventing the disproportionation into 1 by using the complexing agent 15‐crown‐5. EPR spectroscopy of 1 provides the first detailed study of a two‐coordinate transition‐metal complex indicating strong covalency in the Cu−N bonds.