title: Pressure effects in the synthesis of isomeric rotaxanes.
abstract: Pressure not only influences the yield in the synthesis of a two-station [2]rotaxane, it also determines the distribution of the co-conformational isomers. At high pressure cyclobis(paraquat-p-phenylene) is preferentially assembled around a monopyrrolotetrathiafulvalene unit, while at low pressure it is preferentially assembled around a hydroquinone unit.
authors.affiliation: Department of Physics, Chemistry, and Pharmacy, University of Southern Denmark, Campusvej 55, DK-5230 Odense M, Denmark.
authors.forename: Anne
authors.initials: A
authors.lastname: Sørensen
authors.forename: Sissel S
authors.initials: SS
authors.lastname: Andersen
authors.forename: Amar H
authors.initials: AH
authors.lastname: Flood
authors.forename: Jan O
authors.initials: JO
authors.lastname: Jeppesen
mesh_terms: D006873:Hydroquinones / Q000737:chemistry; D007536:Isomerism; D011312:Pressure; D043862:Rotaxanes / Q000138:chemical synthesis*
chemical_list: D006873:Hydroquinones; D043862:Rotaxanes; C031927:hydroquinone