Abstract
The chromatographic conditions for analytical separation of (η6-C6H6) ruthenium(II) complexes with amino acid and dipeptide ligands have been investigated in dependence on their molecular structure. Different chromatographic phases were tested and the efficiency parameters were determined by the reversed-phase ion-pair technique. For the enantiomeric species L-penicillaminato ruthenium(II) complexes cis- and trans-[(η6-C6H6)Ru(L-Pen)H−1]2Cl2 and the reaction byproducts a complete chromatographic separation has been obtained using sodium dodecylsulphate as an ion-pair reagent. For the purification procedure of the L-penicillaminato ruthenium(II) complexes, in order to characterize the separated pure complexes by 1H-NMR spectroscopy, a preparative separation has been carried out using the volatile trifluoroacetic acid as an ion-pair reagent.
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