ArticleACS nano2020
Kekulene: On-Surface Synthesis, Orbital Structure, and Aromatic Stabilization.
Article in ACS nano, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
13 citing papers in PubMed, 48 citations in OpenAlex.
- Tetrabutoxy-substituted quintulene: A missing bowl-shaped cycloarene.Science advances · 2026Article
- Multi-Orbital Charge Transfer into Nonplanar Cycloarenes Revealed with CO-Functionalized STM Tips.The journal of physical chemistry letters · 2026Article
- On-Surface Synthesis of a Nitrogen-Doped Curved Cycloarene: π-Extended Pentaazaquintulene and Its Gold Complex.Journal of the American Chemical Society · 2025Article
- When Aromaticity Falls Short in Molecule-Surface Interactions.The journal of physical chemistry. C, Nanomaterials and interfaces · 2025Article
- Highly Structure-Selective On-Surface Synthesis of Isokekulene Versus Kekulene.Angewandte Chemie (International ed. in English) · 2025Article
- Cyclodehydrogenation of molecular nanographene precursors catalyzed by atomic hydrogen.Nature communications · 2025Article
- Predicting Organometallic Intermediates in the Surface-Assisted Ullmann Coupling of Chrysene Isomers.Molecules (Basel, Switzerland) · 2024Article
- Prediction of highly stable 2D carbon allotropes based on azulenoid kekulene.Nature communications · 2024Article
- Large Distortion of Fused Aromatics on Dielectric Interlayers Quantified by Photoemission Orbital Tomography.ACS nano · 2022Article
- Planar π-extended cycloparaphenylenes featuring an all-armchair edge topology.Nature chemistry · 2022Article
- Demonstrating the Impact of the Adsorbate Orientation on the Charge Transfer at Organic-Metal Interfaces.The journal of physical chemistry. C, Nanomaterials and interfaces · 2021Article
- Going beyond Pentacene: Photoemission Tomography of a Heptacene Monolayer on Ag(110).The journal of physical chemistry. C, Nanomaterials and interfaces · 2021Article
- Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
22 authors at 5 institutions in 2 countries.
Funding
Abstract
We revisit the question of kekulene's aromaticity by focusing on the electronic structure of its frontier orbitals as determined by angle-resolved photoemission spectroscopy. To this end, we have developed a specially designed precursor, 1,4,7(2,7)-triphenanthrenacyclononaphane-2,5,8-triene, which allows us to prepare sufficient quantities of kekulene of high purity directly on a Cu(111) surface, as confirmed by scanning tunneling microscopy. Supported by density functional calculations, we determine the orbital structure of kekulene's highest occupied molecular orbital by photoemission tomography. In agreement with a recent aromaticity assessment of kekulene based solely on C-C bond lengths, we conclude that the π-conjugation of kekulene is better described by the Clar model rather than a superaromatic model. Thus, by exploiting the capabilities of photoemission tomography, we shed light on the question which consequences aromaticity holds for the frontier electronic structure of a π-conjugated molecule.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.