Evidence map›Paper›PMID 41988499›Full record

ArticleChemical science2026

Radical-to-radical push-pull effect enhances single-molecule conductance in asymmetric diradicals.

Dacheng Dai, Qian Zhan, Tianfang Shi, Xiaodong Liu, Lichuan Chen, Sergio Moles Quintero, Dongsheng Wang, Juan Casado, Yonghao Zheng

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Chemical science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. 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.

Dacheng DaiSchool of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China (UESTC) Chengdu 611731 People's Republic of China zhengyonghao@uestc.edu.cn xdliu@uestc.edu.cn wangds@uestc.edu.cn.
Qian ZhanSchool of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China (UESTC) Chengdu 611731 People's Republic of China zhengyonghao@uestc.edu.cn xdliu@uestc.edu.cn wangds@uestc.edu.cn.
Tianfang ShiSchool of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China (UESTC) Chengdu 611731 People's Republic of China zhengyonghao@uestc.edu.cn xdliu@uestc.edu.cn wangds@uestc.edu.cn.
Xiaodong LiuSchool of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China (UESTC) Chengdu 611731 People's Republic of China zhengyonghao@uestc.edu.cn xdliu@uestc.edu.cn wangds@uestc.edu.cn.ORCID https://orcid.org/0000-0001-9639-1525
Lichuan ChenInstitute of Modern Optics and Center of Single-Molecule Science, Tianjin Key Laboratory of Micro-Scale Optical Information Science and Technology, Nankai University Tianjin 300350 People's Republic of China.
Sergio Moles QuinteroDepartment of Physical Chemistry, University of Málaga Campus de Teatinos s/n Málaga 29071 Spain casado@uma.es.ORCID https://orcid.org/0000-0002-5429-6850
Dongsheng WangSchool of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China (UESTC) Chengdu 611731 People's Republic of China zhengyonghao@uestc.edu.cn xdliu@uestc.edu.cn wangds@uestc.edu.cn.ORCID https://orcid.org/0000-0001-5102-5214
Juan CasadoDepartment of Physical Chemistry, University of Málaga Campus de Teatinos s/n Málaga 29071 Spain casado@uma.es.ORCID https://orcid.org/0000-0003-0373-1303
Yonghao ZhengSchool of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China (UESTC) Chengdu 611731 People's Republic of China zhengyonghao@uestc.edu.cn xdliu@uestc.edu.cn wangds@uestc.edu.cn.ORCID https://orcid.org/0000-0003-1931-3536

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Asymmetry produces a unique modulation of diradical character through the appearance of a push-pull electron spin effect when the two unpaired electrons reside in radical moieties of different electron donor (benzo-1,3-dithiol-2-ylidene)/acceptor (phenoxyl) character. Herein, asymmetric diradical substructures are perpendicularly appended to a linear bisphenyl-thiophene segment whose thiomethyl ends are linked to metal electrodes. Using a scanning tunneling microscope break junction technique, we measured the conductance of these diradicals. In the non-radical parents, the whole conductance is investigated through the linear conjugation path between the thiomethyls. In the diradicals, conductance increases compared to that of their non-radical parents, which is taken as fine-tuning by the presence of unpaired electrons of the primordial linear-path conductance. From a molecular orbital perspective, such enhancement is due to the inclusion of new intragap states (

Identifiers

PMID41988499
PMCPMC13078386

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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.