Аннотация:The exchange of a ruthenocene Cp-ligand for an arene was realized for the first time. A set of cationic arene-Cp derivatives of ruthenium [AreneRuC5H5]+X-(Arene = C6H6, CH3C6H5, C6H5C6H5, ClC6H5) was obtained by this reaction. The structure of the complexes was determined by 1H NMR spectroscopy.