title: Cross-step place-exchange of oligo(phenylene-ethynylene) molecules.
abstract: We have observed nitro-functionalized oligo(phenylene-ethynylene) molecules exhibiting motion up and down Au{111} substrate monatomic step edges within host self-assembled monolayers of n-alkanethiols, independent of previously observed conductance switching. Single molecules have been imaged with scanning tunneling microscopy to place-exchange reversibly between the top and bottom of monatomic substrate step edges.
authors.affiliation: Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802-6300, USA.
authors.forename: Amanda M
authors.initials: AM
authors.lastname: Moore
authors.forename: Brent A
authors.initials: BA
authors.lastname: Mantooth
authors.forename: Zachary J
authors.initials: ZJ
authors.lastname: Donhauser
authors.forename: Francisco
authors.initials: F
authors.lastname: Maya
authors.forename: David W
authors.initials: DW
authors.lastname: Price
authors.forename: Yuxing
authors.initials: Y
authors.lastname: Yao
authors.forename: James M
authors.initials: JM
authors.lastname: Tour
authors.forename: Paul S
authors.initials: PS
authors.lastname: Weiss