title: A novel star-shaped zinc porphyrin cored [5]rotaxane.
abstract: A novel star-shaped zinc porphyrin cored [5]rotaxane with four rotaxane arms was synthesized and well characterized by (1)H, (13)C NMR spectroscopy and HR-ESI mass spectrometry. The introduction of the zinc porphyrin core enabled the [5]rotaxane to have a fixed shape and symmetrical structure, and the simultaneous shuttling motion of four macrocycles can be driven by external acid-base stimuli. This kind of topological structure exhibits important potential in the design and construction of large sophisticated assemblies.
authors.affiliation: Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science & Technology, Shanghai 200237, PR China.
authors.forename: Hui
authors.initials: H
authors.lastname: Zhang
authors.forename: Qiang
authors.initials: Q
authors.lastname: Liu
authors.forename: Jing
authors.initials: J
authors.lastname: Li
authors.forename: Da-Hui
authors.initials: DH
authors.lastname: Qu