Dispersion-Force-Assisted Disproportionation: A Stable Two-Coordinate Copper(II) Complex

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• 作者：Clifton L. Wagner ; Dr. Lizhi Tao ; Emily J. Thompson ; Dr. Troy A. Stich ; Dr. Jingdong Guo ; Dr. James C. Fettinger ; Prof. Louise A. Berben ; Prof. R. David Britt ; Prof. Shigeru Nagase and Prof. Philip P. Power
• 刊名：Angewandte Chemie International Edition
• 出版年：2016
• 出版时间：August 22, 2016
• 年：2016
• 卷：55
• 期：35
• 页码：10444-10447
• 全文大小：979K
• ISSN：1521-3773

文摘

The synthesis of the first linear coordinated Cu^II complex Cu{N(SiMe₃)Dipp}₂ (1 Dipp=C₆H₅-2,6Prⁱ₂) and its Cu^I counterpart [Cu{N(SiMe₃)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(SiMe₃)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.