Simplifying the conductance profiles of molecular junctions: the use of the trimethylsilylethynyl moiety as a molecule-gold contact

Marqués-González, S; Yufit, DS; Howard, JAK; Martin, S; Osorio, HM; Garcia-Suarez, VM; Nichols, RJ; Higgins, SJ; Cea, P; Low, PJ

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, –CCSiMe3 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.

Citation

Marqués-González, S., Yufit, D., Howard, J., Martin, S., Osorio, H., Garcia-Suarez, V., …Low, P. (2013). Simplifying the conductance profiles of molecular junctions: the use of the trimethylsilylethynyl moiety as a molecule-gold contact. Dalton Transactions, 42(2), 338-341. https://doi.org/10.1039/c2dt31825c

• Journal Article Type: Article
• Acceptance Date: Oct 9, 2012
• Online Publication Date: Oct 29, 2012
• Publication Date: Jan 1, 2013
• Deposit Date: Aug 13, 2013
• Publicly Available Date: Aug 15, 2013
• Journal: Dalton Transactions
• Print ISSN: 1477-9226
• Electronic ISSN: 1477-9234
• Publisher: Royal Society of Chemistry
• Peer Reviewed: Peer Reviewed
• Volume: 42
• Issue: 2
• Pages: 338-341
• DOI: https://doi.org/10.1039/c2dt31825c
• Public URL: https://durham-repository.worktribe.com/output/1471852