title: Kinetically controlled self-assembly of pseudorotaxanes on crystallization.
abstract: [reaction: see text] Mixing of equimolar amounts of cyclobis(paraquat-p-phenylene) (CBPQT(4+)) with a bis-4-methylphenyl ether (MPE twice) of a 1,5-dioxynaphthalene (DNP) derivative in MeCN/CH(2)Cl(2) (3:1) results in the formation of a [2]pseudorotaxane which, on crystallization, yields a [4]pseudorotaxane in the solid state that is stabilized by multiple [C-H...F] interactions: a mixture of the same components in a 1:3 ratio affords a crystalline [2]pseudorotaxane after vapor diffusion of methyl-tert-butyl ether into a solution of these components in MeCN/CH(2)Cl(2) (3:1).
authors: Department of Chemistry and Biochemistry, University of California, Los Angeles, 90095, USA.
authors: Brian H
authors: BH
authors: Northrop
authors: Saeed J
authors: SJ
authors: Khan
authors: J Fraser
authors: JF
authors: Stoddart