title: A tristable [2]pseudo[2]rotaxane.
abstract: A strategy towards increasing the lifetime of the metastable state of a [2]rotaxane incorporating tetrathiafulvalene, 1,5-dioxynaphthalene and bipyridinium (BIPY(2+)) is presented. Incorporation of BIPY(2+) served multiple roles as an electrostatic barrier to relaxation, a supramolecular recognition site for bis-1,5-dioxynaphthalene[38]crown-10 macrocycle, and upon reduction a recognition site for the mechanically bonded cyclobis(paraquat-p-phenylene) ring.
authors.affiliation: Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL 60202, USA.
authors.forename: Ali
authors.initials: A
authors.lastname: Trabolsi
authors.forename: Albert C
authors.initials: AC
authors.lastname: Fahrenbach
authors.forename: Sanjeev K
authors.initials: SK
authors.lastname: Dey
authors.forename: Andrew I
authors.initials: AI
authors.lastname: Share
authors.forename: Douglas C
authors.initials: DC
authors.lastname: Friedman
authors.forename: Subhadeep
authors.initials: S
authors.lastname: Basu
authors.forename: Travis B
authors.initials: TB
authors.lastname: Gasa
authors.forename: Niveen M
authors.initials: NM
authors.lastname: Khashab
authors.forename: Sourav
authors.initials: S
authors.lastname: Saha
authors.forename: Ivan
authors.initials: I
authors.lastname: Aprahamian
authors.forename: Hussam A
authors.initials: HA
authors.lastname: Khatib
authors.forename: Amar H
authors.initials: AH
authors.lastname: Flood
authors.forename: J Fraser
authors.initials: JF
authors.lastname: Stoddart