126313 20241125101153.0 doi 10.1002/admi.202300133 sideral 133675 ART-2023-133675 eng Herrer, Lucia Universidad de Zaragoza (orcid)0000-0002-3576-5156 Sheathed molecular junctions for unambiguous determination of charge-transport properties 2023 Access copy available to the general public Unrestricted Future applications of single-molecular and large-surface area molecular devices require a thorough understanding and control of molecular junctions, interfacial phenomena, and intermolecular interactions. In this contribution the concept of single-molecule junction and host-guest complexation to sheath a benchmark molecular wire–namely 4,4′-(1,4-phenylenebis(ethyne-2,1-diyl))dianiline – with an insulating cage, pillar[5]arene 1,4-diethoxy-2-ethyl-5-methylbenzene is presented. The insertion of one guest molecular wire into one host pillar[5]arene is probed by 1H-NMR (nuclear magnetic resonance), whilst the self-assembly capabilities of the amine-terminated molecular wire remain intact after complexation as demonstrated by XPS (X-ray photoelectron spectroscopy) and AFM (atomic force microscopy). Encapsulation of the molecular wire prevents the formation of π- π stacked dimers and permits the determination of the true single molecule conductance with increased accuracy and confidence, as demonstrated here by using the STM–BJ technique (scanning tunneling microscopy– break junction). This strategy opens new avenues in the control of single-molecule properties and demonstrates the pillararenes capabilities for the future construction of arrays of encapsulated single-molecule functional units in large-surface area devices. info:eu-repo/grantAgreement/ES/DGA/E31-20R info:eu-repo/grantAgreement/ES/DGA/E47-20R info:eu-repo/grantAgreement/ES/MICINN-FEDER/PID2021-122882NB-I00 info:eu-repo/grantAgreement/ES/MICINN/PGC2018-097583-I00 info:eu-repo/grantAgreement/ES/MICINN/PID2019-105881RB-I00 info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 4.3 2023 CHEMISTRY, MULTIDISCIPLINARY 72 / 231 = 0.312 2023 Q2 T1 MATERIALS SCIENCE, MULTIDISCIPLINARY 153 / 439 = 0.349 2023 Q2 T2 1.194 2023 Mechanics of Materials 2023 Q1 Mechanical Engineering 2023 Q1 8.4 2023 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Naghibi, Saman Marín, Ivan Universidad de Zaragoza Ward, Jonathan S. Bonastre, Jose María Universidad de Zaragoza Higgins, S. J. Martín, Santiago Universidad de Zaragoza (orcid)0000-0001-9193-3874 Vezzoli, Andrea Nichols, Richard John Serrano, José Luis Universidad de Zaragoza (orcid)0000-0001-9866-6633 Cea, Pilar Universidad de Zaragoza (orcid)0000-0002-4729-9578 2013 765 Universidad de Zaragoza Dpto. Química Orgánica Área Química Orgánica 2012 755 Universidad de Zaragoza Dpto. Química Física Área Química Física 10, 16 (2023), 2300133 [9 pp.] Adv. mater. interfaces Advanced Materials Interfaces 2196-7350 1121022 http://zaguan.unizar.es/record/126313/files/texto_completo.pdf Versión publicada 2609955 http://zaguan.unizar.es/record/126313/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:126313 articulos driver 2024-11-22-12:07:46 ARTICLE