Dispersion‐Force‐Assisted Disproportionation: A Stable Two‐Coordinate Copper(II) Complex. Issue 35 (15th July 2016)

• Record Type: Journal Article
• Authors: 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.
• Is Part Of: Angewandte Chemie international edition. Volume 55:Issue 35(2016)
• Page Start: 10444
• Page End: 10447
• Publication Date: 2016-07-15
• Subjects: copper -- dispersion effects -- disproportionation -- EPR spectroscopy -- silylamide; Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201605061
• Languages: English
• ISSNs: 1433-7851

Abstract

Abstract: The synthesis of the first linear coordinated Cu II complex Cu{N(SiMe3 )Dipp}2 (1 Dipp=C6 H5 ‐2, 6Pr i 2 ) and its Cu I counterpart [Cu{N(SiMe3 )Dipp}2 ] − (2 ) is described. The formation of1 proceeds through a dispersion force‐driven disproportionation, and is the reaction product of a Cu I halide and LiN(SiMe3 )Dipp in a non‐donor solvent. The synthesis of2 is accomplished by preventing the disproportionation into1 by using the complexing agent 15‐crown‐5. EPR spectroscopy of1 provides the first detailed study of a two‐coordinate transition‐metal complex indicating strong covalency in the Cu−N bonds. Abstract : Straight‐up copper : The synthesis of the first linear Cu II complex Cu{N(SiMe3 )Dipp}2 (Dipp=C6 H5 ‐2, 6Pr i 2 ) and its Cu I counterpart [Cu{N(SiMe3 )Dipp}2 ] − is described. The former, studied by EPR spectroscopy, forms through a dispersion force‐driven disproportionation, and is the reaction product of a Cu I halide and LiN(SiMe3 )Dipp in a non‐donor solvent. The latter forms by preventing the disproportionation by using the complexing agent 15‐crown‐5.