Carboxylate and ammonium functionalities-32 of each-facilitate electrostatic interaction between oppositely charged dendrimer electrolytes and porphyrin cores, which leads in protic media to a supramolecular, fluorescence-active aggregate of two chromophores that communicate and have a predictable topology (see drawing on the right; A=acceptor, D=donor). In contrast to the complexation of linear polyelectrolytes, the contact area for the two dendrimer molecules is very limited, just as one would expect for an assembly of spherical molecules.
Je 32 Carboxylat‐ und Ammonium‐Funktionalitäten ermöglichen die elektrostatische Wechselwirkung zwischen unterschiedlich geladenen dendritischen Elektrolyten und Porphyrinkernen, die in protischen Medien zu einem supramolekularen, fluoreszenzaktiven Aggregat mit vorausbestimmbarer Anordnung zweier kommunizierender Chromophore führt (siehe rechts, A = Acceptor, D = Donor). Im Unterschied zur Komplexierung linearer Polyelektrolyte besteht der Kontakt zwischen zwei Dendrimermolekülen allerdings nur über einen kleinen Bereich, wie man es bei der Zusammenlagerung kugelförmiger Moleküle erwarten würde.
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