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Pure Appl. Chem., 2010, Vol. 82, No. 3, pp. 649-656

Published online 2010-02-14

Polyfluorinated ligand-supported organometallic complexes of copper, silver, and gold

H. V. Rasika Dias

Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX 76019-0065, USA

Abstract: The tris(pyrazolyl)borate [HB(3,5-(CF3)2Pz)3] prepared using highly fluorinated 3,5-bis(trifluoromethyl)pyrazole and BH4 is an excellent supporting ligand for the stabilization of a number of rare organometallic complexes of coinage metals. For example, it has enabled the isolation of Cu(I), Ag(I), and Au(I) complexes of CO and ethylene as crystalline solids. Syntheses, spectroscopic and structural features, and properties of [HB(3,5‑(CF3)2Pz)3]ML (M = Cu, Ag, Au; L = CO, C2H4) are the main focus of this discussion. Several metal adducts based on the tris(triazolyl)borate [HB(3,5-(CF3)2Tz)3] supporting ligand as well as the cationic, coinage metal multi-alkene complexes containing the [SbF6] counterion are also discussed.