title: Hierarchical porphyrin self-assembly in aqueous solution.
abstract: In aqueous solution meso-tetrakis(4-phosphonatophenyl)porphyrin shows self-aggregation processes controlled by the "sergeant-soldier rule". After partial protonation of the external phosphonic groups, it is possible (i) to further protonate the inner nitrogen atoms of the molecules or (ii) to allow, over time, the system to aggregate. Therefore, the two procedure lead to a different system evolution, producing species with different chemico-physical properties.
authors.affiliation: Dipartimento di Scienze Chimiche, Università di Catania, Viale A, Doria 6, 95125 Catania, Italy.
authors.forename: Massimo
authors.initials: M
authors.lastname: De Napoli
authors.forename: Sara
authors.initials: S
authors.lastname: Nardis
authors.forename: Roberto
authors.initials: R
authors.lastname: Paolesse
authors.forename: M Graça H
authors.initials: MG
authors.lastname: Vicente
authors.forename: Rosaria
authors.initials: R
authors.lastname: Lauceri
authors.forename: Roberto
authors.initials: R
authors.lastname: Purrello