title: Translational isomerism in a [3]catenane and a [3]rotaxane.
abstract: [structure: see text] Post-assembly covalent modification using Wittig chemistry of [2]rotaxane ylides, wherein NH(2)(+) centers in the dumbbell-shaped components are recognized by dibenzo[24]crown-8 (DB24C8) rings, has afforded a [3]catenane and a [3]rotaxane with a precise and synthetically prescribed shortage of DB24C8 rings. The nondegenerate pairs of translational isomers present in both of these interlocked molecular compounds provide the fundamental platform on which to construct sensory devices and nanochemomechanical systems.
authors.affiliation: Department of Chemistry and Biochemistry, University of California, Los Angeles, 405 Hilgard Avenue, Los Angeles, California 90095-1569, USA.
authors.forename: Sheng-Hsien
authors.initials: SH
authors.lastname: Chiu
authors.forename: Arkadij M
authors.initials: AM
authors.lastname: Elizarov
authors.forename: Peter T
authors.initials: PT
authors.lastname: Glink
authors.forename: J Fraser
authors.initials: JF
authors.lastname: Stoddart
mesh_terms: D000873:Anthracenes; D007536:Isomerism; D009682:Magnetic Resonance Spectroscopy; D011083:Polycyclic Compounds / Q000737:chemistry*; D043862:Rotaxanes
chemical_list: D000873:Anthracenes; D011083:Polycyclic Compounds; D043862:Rotaxanes; C467767:catenane