New triple-decker complexes prepared by the stacking reactions of cationicmetallofragments with sandwich compounds

The results of our recent studies devoted to the synthesis of cationic trip le-decker complexes are summarized. The stacking reactions of cationic meta llofragments with sandwich compounds can be used as a general method for th e synthesis of these complexes. This method was used for the preparation of 30- and 34-electron cationic triple-decker complexes containing cyclopenta dienyl and pentaphospholyl ligands in the bridging position and carbocycles CnHn (n = 4-7) and carboranes as terminal ligands.