Polycationic flexible pyridinium and rigid bipyridinium (= viologen) dendrimers were prepared. The cationic charges are persistent and equally distributed all through the dendrimers. The dendrimers are filled with monoanionic (benzenesulfonate (BS)), dianionic (anthraquinone disulfonate (AQDS), naphthalene disulfonate (NDS)), and trianionic (pyranine (Pyr)) guest molecules in a stepwise inside-out, shell-by-shell fashion. The total ...