title: Processive rotaxane systems. Studies on the mechanism and control of the threading process.
abstract: The threading behavior of a zinc analogue of a previously reported processive manganese porphyrin catalyst onto a series of polymers of different lengths is reported. It is demonstrated that the speed of the threading process is determined by the opening of the cavity of the toroidal porphyrin host, which can be tuned with the help of axial ligands that coordinate to the metal center in the porphyrin.
authors.affiliation: Institute for Molecules and Materials, Radboud Universiteit Nijmegen, Toernooiveld 1, 6525 ED Nijmegen, The Netherlands.
authors.forename: Pilar Hidalgo
authors.initials: PH
authors.lastname: Ramos
authors.forename: Ruud G E
authors.initials: RG
authors.lastname: Coumans
authors.forename: Alexander B C
authors.initials: AB
authors.lastname: Deutman
authors.forename: Jan M M
authors.initials: JM
authors.lastname: Smits
authors.forename: Rene
authors.initials: R
authors.lastname: de Gelder
authors.forename: Johannes A A W
authors.initials: JA
authors.lastname: Elemans
authors.forename: Roeland J M
authors.initials: RJ
authors.lastname: Nolte
authors.forename: Alan E
authors.initials: AE
authors.lastname: Rowan
mesh_terms: D000465:Algorithms; D002384:Catalysis; D018360:Crystallography, X-Ray; D007700:Kinetics; D008024:Ligands; D049449:Luminescence; D008968:Molecular Conformation; D008970:Molecular Weight; D011166:Porphyrins / Q000737:chemistry; D043862:Rotaxanes / Q000737:chemistry*; D013816:Thermodynamics; D017967:Zinc Compounds / Q000737:chemistry
chemical_list: D008024:Ligands; D011166:Porphyrins; D043862:Rotaxanes; D017967:Zinc Compounds