Deskarene: Single-Molecule Conductance and Mixed-Valence Character of Diferrocene-Based Ladder-Type Conjugated Molecules
Ferrocene-anthracene-fused ladder-type molecules (<b>2Fc-</b><i><b>anti</b></i> and <b>2Fc-</b><i><b>syn</b></i>) were achieved via a C-H activation/annulation strategy. This design extends the π-conjugated system through molecular ladderization, effectively elongating the molecular backbone and enhancing its delocalization. <b>2Fc-</b><i><b>anti</b></i> exhibits characteristic class II mixed-valence behavior, with superior equilibrium constant <i>K</i><sub>c</sub> compared to the non-ladderized control molecule <b>2Fc-nc</b>. Single-molecule conductance measurements using the scanning tunneling microscopy break junction (STM-BJ) technique identified the most probable conductance of 10<sup>-3.3</sup> <i>G</i><sub>0</sub>, indicating that the molecular framework possesses efficient charge transport capability.
Authors
- Biao Zheng (ORCID: https://orcid.org/0000-0003-3308-4135)
- Qian‐Chong Zhang (ORCID: https://orcid.org/0000-0001-9701-0106)
- Pei-Jia Hu
- A.-M. Guo
- Yuanming Li
- Yaofeng Yuan
- Yanxia Huang
- Na Huang
- Yuanping Li
Institutions
- Central South University (CN)
- Chinese Academy of Sciences (CN)
- Supermicro (United States) (US)
- Fujian Institute of Research on the Structure of Matter (CN)
- Fuzhou University (CN)
Publication Details
- Journal
- Organic Letters
- Published
- 2026-02-26
- DOI
- https://doi.org/10.1021/acs.orglett.5c05170
- Primary Topic
- Molecular Junctions and Nanostructures
- Type
- article
- Field-Weighted Citation Impact
- 0.00