ArticleScientific reports2017
Quantum interference and heteroaromaticity of para- and meta-linked bridged biphenyl units in single molecular conductance measurements.
Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed.
- Antiaromaticity-Driven Enhancement of Single-Molecule Electrical Conductance by s-Indacene Molecular Bridges.Angewandte Chemie (International ed. in English) · 2026Article
- Heteroatom Effects on Quantum Interference in Molecular Junctions: Exploring Perturbation through Multiple Cross-Conjugation.The journal of physical chemistry. C, Nanomaterials and interfaces · 2026Article
- The Conductance and Thermopower Behavior of PendentACS omega · 2024Article
- Planar aromatic anchors control the electrical conductance of gold|molecule|graphene junctions.Nanoscale advances · 2023Article
- Scaling of quantum interference from single molecules to molecular cages and their monolayers.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- Multi-component self-assembled molecular-electronic films: towards new high-performance thermoelectric systems.Chemical science · 2022Article
- Heteroatom Effects on Quantum Interference in Molecular Junctions: Modulating Antiresonances by Molecular Design.The journal of physical chemistry. C, Nanomaterials and interfaces · 2021Article
- Diphenylanthracene Dimers for Triplet-Triplet Annihilation Photon Upconversion: Mechanistic Insights for Intramolecular Pathways and the Importance of Molecular Geometry.Journal of the American Chemical Society · 2021Article
- Optimised power harvesting by controlling the pressure applied to molecular junctions.Chemical science · 2021Article
- Intermolecular Effects on Tunneling through Acenes in Large-Area and Single-Molecule Junctions.The journal of physical chemistry. C, Nanomaterials and interfaces · 2020Article
- Synthetic Control of Quantum Interference by Regulating Charge on a Single Atom in Heteroaromatic Molecular Junctions.The journal of physical chemistry letters · 2019Article
- Systematic experimental study of quantum interference effects in anthraquinoid molecular wires.Nanoscale advances · 2019Article
- Charge transfer complexation boosts molecular conductance through Fermi level pinning.Chemical science · 2019Article
- Thermoelectric Properties of 2,7-Dipyridylfluorene Derivatives in Single-Molecule Junctions.The journal of physical chemistry. C, Nanomaterials and interfaces · 2018Article
- Two-Terminal Molecular Memory through Reversible Switching of Quantum Interference Features in Tunneling Junctions.Angewandte Chemie (International ed. in English) · 2018Article
- Oscillating Seebeck coefficients in π-stacked molecular junctions.RSC advances · 2018Article
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Is there a correlation between the (hetero)aromaticity of the core of a molecule and its conductance in a single molecular junction? To address this question, which is of fundamental interest in molecular electronics, oligo(arylene-ethynylene) (OAE) molecular wires have been synthesized with core units comprising dibenzothiophene, carbazole, dibenzofuran and fluorene. The biphenyl core has been studied for comparison. Two isomeric series have been obtained with 4-ethynylpyridine units linked to the core either at para-para positions (para series 1-5) or meta-meta positions (meta series 6-10). A combined experimental and computational study, using mechanically controlled break junction measurements and density functional theory calculations, demonstrates consistently higher conductance in the para series compared to the meta series: this is in agreement with increased conjugation of the π-system in the para series. Within the para series conductance increases in the order of decreasing heteroaromaticity (dibenzothiophene < carbazole < dibenzofuran). However, the sequence is very different in the meta series, where dibenzothiophene ≈ dibenzofuran < carbazole. Excellent agreement between theoretical and experimental conductance values is obtained. Our study establishes that both quantum interference and heteroaromaticity in the molecular core units play important and inter-related roles in determining the conductance of single molecular junctions.
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