title: Simplifying the conductance profiles of molecular junctions: the use of the trimethylsilylethynyl moiety as a molecule-gold contact.
abstract: Conductance across a metal|molecule|metal junction is strongly influenced by the molecule-substrate contacts, and for a given molecular structure, multiple conductance values are frequently observed and ascribed to distinct binding modes of the contact at each of the molecular termini. Conjugated molecules containing a trimethylsilylethynyl terminus, -C≡CSiMe(3) give exclusively a single conductance value in I(s) measurements on gold substrates, the value of which is similar to that observed for the same molecular backbone with thiol and amine based contacting groups when bound to under-coordinated surface sites.
authors.affiliation: Department of Chemistry and Centre for Molecular and Nanoscale Electronics, Durham University, Durham, DH1 3LE, UK.
authors.forename: Santiago
authors.initials: S
authors.lastname: Marqués-González
authors.forename: Dmitry S
authors.initials: DS
authors.lastname: Yufit
authors.forename: Judith A K
authors.initials: JA
authors.lastname: Howard
authors.forename: Santiago
authors.initials: S
authors.lastname: Martín
authors.forename: Henrry M
authors.initials: HM
authors.lastname: Osorio
authors.forename: Víctor M
authors.initials: VM
authors.lastname: García-Suárez
authors.forename: Richard J
authors.initials: RJ
authors.lastname: Nichols
authors.forename: Simon J
authors.initials: SJ
authors.lastname: Higgins
authors.forename: Pilar
authors.initials: P
authors.lastname: Cea
authors.forename: Paul J
authors.initials: PJ
authors.lastname: Low