Evidence map›Paper›PMID 33848044›Full record

ArticleAngewandte Chemie (International ed. in English)2021

Persistent peri-Heptacene: Synthesis and In Situ Characterization.

M R Ajayakumar, Ji Ma, Andrea Lucotti, Karl Sebastian Schellhammer, Gianluca Serra, Evgenia Dmitrieva, Marco Rosenkranz, Hartmut Komber, Junzhi Liu, Frank Ortmann and 2 more

Abstract read
In one paragraph

Article in Angewandte Chemie (International ed. in English), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing 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

10 citing papers in PubMed.

  1. Article
  2. Highly Ordered Single DomainThe journal of physical chemistry. C, Nanomaterials and interfaces · 2025
    Article
  3. Article
  4. Article
  5. Article
  6. Journal of the American Chemical Society · 2022
    Article
  7. Article
  8. Article
  9. NBN-Doped Bis-Tetracene and Peri-Tetracene: Synthesis and Characterization.Angewandte Chemie (International ed. in English) · 2021
    Article
  10. Persistent peri-Heptacene: Synthesis and In Situ Characterization.Angewandte Chemie (International ed. in English) · 2021
    Article
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

12 authors.

M R AjayakumarCenter for Advancing Electronics Dresden (cfaed) & Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Mommsenstrasse 4, 01062, Dresden, Germany.
Ji MaCenter for Advancing Electronics Dresden (cfaed) & Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Mommsenstrasse 4, 01062, Dresden, Germany.ORCID http://orcid.org/0000-0003-4418-2339
Andrea LucottiDipartimento di Chimica, Materiali ed Ingegneria Chimica "G. Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133, Milano, Italy.
Karl Sebastian SchellhammerCenter for Advancing Electronics Dresden, Technische Universität Dresden, Helmholtzstraße 18, 01069, Dresden, Germany.
Gianluca SerraDipartimento di Chimica, Materiali ed Ingegneria Chimica "G. Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133, Milano, Italy.
Evgenia DmitrievaCenter of Spectroelectrochemistry, Leibniz Institute for Solid State and Materials Research (IFW), Helmholtzstraße 20, 01069, Dresden, Germany.
Marco RosenkranzCenter of Spectroelectrochemistry, Leibniz Institute for Solid State and Materials Research (IFW), Helmholtzstraße 20, 01069, Dresden, Germany.
Hartmut KomberLeibniz-Institut for Polymerforschung Dresden e. V., Hohe Straße 6, 01069, Dresden, Germany.
Junzhi LiuCenter for Advancing Electronics Dresden (cfaed) & Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Mommsenstrasse 4, 01062, Dresden, Germany.
Frank OrtmannCenter for Advancing Electronics Dresden, Technische Universität Dresden, Helmholtzstraße 18, 01069, Dresden, Germany.
Matteo TommasiniDipartimento di Chimica, Materiali ed Ingegneria Chimica "G. Natta", Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133, Milano, Italy.
Xinliang FengCenter for Advancing Electronics Dresden (cfaed) & Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Mommsenstrasse 4, 01062, Dresden, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

n-peri-Acenes (n-PAs) have gained interest as model systems of zigzag-edged graphene nanoribbons for potential applications in nanoelectronics and spintronics. However, the synthesis of n-PAs larger than peri-tetracene remains challenging because of their intrinsic open-shell character and high reactivity. Presented here is the synthesis of a hitherto unknown n-PA, that is, peri-heptacene (7-PA), in which the reactive zigzag edges are kinetically protected with eight 4-tBu-C

Indexed as

acenesgraphenenanostructuresradicalsScholl reaction

Identifiers

PMID33848044
PMCPMC8251907

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

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.