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

Chemical Science 2026 Open access

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Authors: Dacheng Dai, Qian Zhan, Tianfang Shi, Xiaodong Liu, Lichuan Chen, Sergio Moles Quintero, Dongsheng Wang, Juan Casado, Yonghao Zheng
DOI: 10.1039/d6sc00562d
Cited by: 1
References: 44

Abstract

, near the Fermi energy level). From a valence bond perspective, the increase is due to the additional linear conjugation channel provided by the hypervalent state of sulfur resulting from bonding of the two unpaired electrons by a push-pull electron spin effect. Also, there is a reduction of the conductance by enlarging the donor-acceptor moiety with more phenyl groups as a result of the variable weights of the hypervalent sulfur form and of the zwitterionic form. Therefore, the single-molecule junction technique can allow the establishment of relationships between intramolecular radical-radical coupling in off-site diradicals and single-molecule conductance tuning.

Fields of Study & Subjects

Synthesis and Properties of Aromatic Compounds Molecular Junctions and Nanostructures Magnetism in coordination complexes

Publication details

Journal / source
Chemical Science
Publisher
Royal Society of Chemistry (RSC)
Volume
17
Issue
21
Pages
10519–10528
Publication date
1 January 2026
Language
EN