title: Host-guest chemistry of a bis-calix[4]pyrrole derivative containing a trans/cis-switchable azobenzene unit with several aliphatic bis-carboxylates.
abstract: The azobenzene unit used as a photochemically and thermally switchable linker in the assembly of a bis-calix[4]pyrrole receptor provides a means to modulate the binding of bis-carboxylates of significant biological importance in cancer research. Conversely, the complexation of different bis-anionic guests has significant kinetic effects on both the photochemical and thermal trans/cis isomerization of the azobenzene unit.
authors.affiliation: Dipartimento di Scienze Chimiche, Università di Messina viale F. Stagno d'Alcontres 31, 98166 Messina (Italy).
authors.forename: Grazia
authors.initials: G
authors.lastname: Cafeo
authors.forename: Franz H
authors.initials: FH
authors.lastname: Kohnke
authors.forename: Giovanni
authors.initials: G
authors.lastname: Mezzatesta
authors.forename: Aldo
authors.initials: A
authors.lastname: Profumo
authors.forename: Camillo
authors.initials: C
authors.lastname: Rosano
authors.forename: Antonino
authors.initials: A
authors.lastname: Villari
authors.forename: Andrew J P
authors.initials: AJ
authors.lastname: White
keywords: anion binding; azocompounds; calixpyrroles; carboxylates; host-guest systems