Evidence map›Paper›PMID 34188031›Full record

ArticleNature communications2021

Self-assembly of N-heterocyclic carbenes on Au(111).

Alex Inayeh, Ryan R K Groome, Ishwar Singh, Alex J Veinot, Felipe Crasto de Lima, Roberto H Miwa, Cathleen M Crudden, Alastair B McLean

Abstract read
In one paragraph

Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

33 citing papers in PubMed.

  1. Article
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  4. Ultra-Thin and Highly Insulating Aromatic Monolayers by N-Heterocyclic Carbenes.Angewandte Chemie (International ed. in English) · 2026
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  13. Surface Characterization of N-Heterocyclic Carbenes on Gold and Silver: Exploring Distinct Crystalline Facets.Chemphyschem : a European journal of chemical physics and physical chemistry · 2025
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Alex InayehDepartment of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, ON, Canada.
Ryan R K GroomeDepartment of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, ON, Canada.ORCID http://orcid.org/0000-0001-6575-5787
Ishwar SinghDepartment of Chemistry, Queen's University, Kingston, ON, Canada.
Alex J VeinotDepartment of Chemistry, Queen's University, Kingston, ON, Canada.
Felipe Crasto de LimaInstituto de Física, Universidade Federal de Uberlândia, Uberlândia, Minas Gerais, Brazil.ORCID http://orcid.org/0000-0002-2937-2620
Roberto H MiwaInstituto de Física, Universidade Federal de Uberlândia, Uberlândia, Minas Gerais, Brazil.
Cathleen M CruddenDepartment of Chemistry, Queen's University, Kingston, ON, Canada. cruddenc@chem.queensu.ca.ORCID http://orcid.org/0000-0003-2154-8107
Alastair B McLeanDepartment of Physics, Engineering Physics, and Astronomy, Queen's University, Kingston, ON, Canada. mcleana@queensu.ca.ORCID http://orcid.org/0000-0001-9653-7985

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although the self-assembly of organic ligands on gold has been dominated by sulfur-based ligands for decades, a new ligand class, N-heterocyclic carbenes (NHCs), has appeared as an interesting alternative. However, fundamental questions surrounding self-assembly of this new ligand remain unanswered. Herein, we describe the effect of NHC structure, surface coverage, and substrate temperature on mobility, thermal stability, NHC surface geometry, and self-assembly. Analysis of NHC adsorption and self-assembly by scanning tunneling microscopy and density functional theory have revealed the importance of NHC-surface interactions and attractive NHC-NHC interactions on NHC monolayer structures. A remarkable way these interactions manifest is the need for a threshold NHC surface coverage to produce upright, adatom-mediated adsorption motifs with low surface diffusion. NHC wingtip structure is also critical, with primary substituents leading to the formation of flat-lying NHC

Identifiers

PMID34188031
PMCPMC8241988

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Registered trials

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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.