title: Self-assembly, binding, and dynamic properties of heterodimeric porphyrin macrocycles.
abstract: A series of heterodimeric tetralactam macrocycles have been self-assembled using two kinetically labile zinc porphyrin-pyridine interactions. The stability constants have been determined by UV-vis titrations in CHCl3. The stability constants depend on the degree of preorganization of the linker units connecting the interacting groups. The ability of the self-assembled macrocycles to bind a terephthalamide guest was also investigated. One of the macrocycles was used for the construction of a [2]rotaxane. The dynamic properties of this system provide insight into the exchange mechanisms that operate in complex noncovalent assemblies.
authors.affiliation: ICREA and Institute of Chemical Research of Catalonia (ICIQ), 43007-Tarragona, Spain. pballester@iciq.es
authors.forename: Pablo
authors.initials: P
authors.lastname: Ballester
authors.forename: Antoni
authors.initials: A
authors.lastname: Costa
authors.forename: Pere M
authors.initials: PM
authors.lastname: Deyà
authors.forename: Antonio
authors.initials: A
authors.lastname: Frontera
authors.forename: Rosa M
authors.initials: RM
authors.lastname: Gomila
authors.forename: Ana I
authors.initials: AI
authors.lastname: Oliva
authors.forename: Jeremy K M
authors.initials: JK
authors.lastname: Sanders
authors.forename: Christopher A
authors.initials: CA
authors.lastname: Hunter