title: Reversible interconversion between a supramolecular polymer and a discrete octameric species from a guanosine derivative by dynamic cation binding and release.
abstract: [reaction: see text] The tunable interconversion between two highly ordered supramolecular motifs (G-quartet K(+)-templated column and G-ribbon) of a lipophilic guanosine derivative fueled by cation complexation and release in a cryptand [2.2.2] containing guanosine solution is reported. The process is controlled by the sequential addition of acid and base.
authors.affiliation: Dipartimento di Chimica Organica A. Mangini, Alma Mater Studiorum, Università di Bologna, Italy.
authors.forename: Silvia
authors.initials: S
authors.lastname: Pieraccini
authors.forename: Stefano
authors.initials: S
authors.lastname: Masiero
authors.forename: Omar
authors.initials: O
authors.lastname: Pandoli
authors.forename: Paolo
authors.initials: P
authors.lastname: Samorì
authors.forename: Gian Piero
authors.initials: GP
authors.lastname: Spada
mesh_terms: D002412:Cations / Q000737:chemistry; D006151:Guanosine / Q000031:analogs & derivatives* / Q000737:chemistry*; D008958:Models, Molecular; D015394:Molecular Structure; D011108:Polymers / Q000737:chemistry*
chemical_list: D002412:Cations; D011108:Polymers; D006151:Guanosine