Abstract
Salts comprising of cationic half-sandwich Ru(II) complexes with various chelating ligands and the bis(trifluoromethanesulfonyl)amide anion (Tf2N−) were prepared. These salts can be represented as [(arene)RuCl(L–L)][Tf2N] (arene=C6Me5Bu, C6Me6, p-cymene, C6H6; L–L=2-Py-CH2NHCMe2Et, 2-Py-CHNC6H13, H13C6NHCH2CH2NHC6H13, Me2NCH2CH2SC4H9, Me2CNCHCHNCMe2). Two of the eight salts are liquids at room temperature (∼20°C), while the other salts are solids with melting points of 60–130°C. Upon cooling from the melt, most salts exhibited glass transitions between −30°C and −5°C. The salts were found to catalyze the oxidation of cyclohexanol although decomposition occurred during the reaction. Crystal structures of related salts were also determined.
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