Evidence map›Paper›PMID 40827539›Full record

ArticleChemistry (Weinheim an der Bergstrasse, Germany)2025

Taming m-Quionodimethanes by Dispersion Force: Cyclodimerization of (Trialkylsilyl)Ethynyl-Substituted Indeno[2,1-b]Fluorenes and Fluoreno[2,3-b]Fluorenes.

Ching-En Hung, Hsin-Chung Lin, Rumi Ozawa, Yogajivan Rout, Hirokazu Miyoshi, Yutaka Ie, Ichiro Hisaki, Yen-Ju Cheng, Yoshito Tobe

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Chemistry (Weinheim an der Bergstrasse, Germany), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Article
  2. Review
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

9 authors.

Ching-En HungDepartment of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 Ta Hsueh Road, Hsinchu, 30030, Taiwan.
Hsin-Chung LinDepartment of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 Ta Hsueh Road, Hsinchu, 30030, Taiwan.
Rumi OzawaNanoscience and Nanotechnology Center, SANKEN, The University of Osaka, Ibaraki, Osaka, 567-0047, Japan.
Yogajivan RoutDepartment of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 Ta Hsueh Road, Hsinchu, 30030, Taiwan.
Hirokazu MiyoshiDivision of Frontier Materials Science, Graduate School of Engineering Science, The University of Osaka, Toyonaka, Osaka, 560-8531, Japan.
Yutaka IeNanoscience and Nanotechnology Center, SANKEN, The University of Osaka, Ibaraki, Osaka, 567-0047, Japan.ORCID https://orcid.org/0000-0003-0208-4298
Ichiro HisakiDivision of Chemistry, Graduate School of Engineering Science, The University of Osaka, Toyonaka, Osaka, 560-8531, Japan.ORCID https://orcid.org/0000-0002-8170-5605
Yen-Ju ChengDepartment of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 Ta Hsueh Road, Hsinchu, 30030, Taiwan.ORCID https://orcid.org/0000-0003-0780-4557
Yoshito TobeDepartment of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 Ta Hsueh Road, Hsinchu, 30030, Taiwan.ORCID https://orcid.org/0000-0002-1795-5829

Funding

Japan Science and Technology Agency JPMJCR20R1Japan Society for the Promotion of Science JP24K01468Ministry of Education (MOE), Taiwan MOE-113-YSFMS-0010-001-P1National Science and Technology Council, Taiwan 113-2113-M-A49-009
6 · The paper itself

Abstract

We present herein a systematic study on the cyclodimerization of (trialkylsilyl)ethynyl-substituted derivatives of indeno[2.1-b]fluorene and fluoreno[2,3-b]fluorene, which incorporate an open-shell meta-quinodimethane (m-QDM) unit. Our investigation focuses on the influence of different alkyl groups (methyl, isopropyl, or cyclohexyl) attached to the silyl moiety. Upon generation from the precursor diols via treatment with SnCl

Indexed as

cyclodimerizationdiradical intermediatesdispersion forceopen‐shell characterquinodimethanes

Identifiers

PMID40827539
PMCPMC12462229

What OpenQuestion holds

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LicenceCC BY
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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.