| abstract |
The invention relates to cationic ruthenium complexes of the general formulae (A) or (B) or mixtures containing same, where B can be stabilized by a further ligand L4 and X is an anion which is not or weakly coordinated to the metal centre; Y is a monodentate or multidentate anionic ligand; R and R' each independently of each other are hydrogen or a possibly substituted C1-20 alkyl-, C6-20-aryl-, or C7-20 alkylaryl rest; and L1, L2, L3 and L4 independently of each other are neutral electron donor ligands. |