Multichannel Conductance of Folded Single-Molecule Wires Aided by Through-Space Conjugation

被引：99

作者：

Chen, Long ^{[1
]}

Wang, Ya-Hao ^{[2
]}

He, Bairong ^{[1
]}

Nie, Han ^{[1
]}

Hu, Rongrong ^{[1
]}

Huang, Fei ^{[1
]}

Qin, Anjun ^{[1
]}

Zhou, Xiao-Shun ^{[2
]}

Zhao, Zujin ^{[1
]}

Tang, Ben Zhong ^{[1
,3
]}

机构：

[1] S China Univ Technol, Guangdong Innovat Res Team, SCUT HKUST Joint Res Lab, State Key Lab Luminescent Mat & Devices, Guangzhou 510640, Guangdong, Peoples R China

[2] Zhejiang Normal Univ, Inst Phys Chem, Zhejiang Key Lab React Chem Solid Surfaces, Jinhua 321004, Zhejiang, Peoples R China

[3] Hong Kong Univ Sci & Technol, Div Life Sci, Div Biomed Engn, Dept Chem, Kowloon, Hong Kong, Peoples R China

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2015年 / 54卷 / 14期

基金：

中国国家自然科学基金;

关键词：

conductance; folded molecules; single-molecule wire; pi-pi stacking; scanning tunneling microcopy; ELECTRON-TRANSPORT; STEREOSELECTIVE-SYNTHESIS; JUNCTION CONDUCTANCE; CHARGE-TRANSPORT; LENGTH; LUMINOGENS; RESISTANCE; CORRELATE; EMISSION; MODELS;

D O I：

10.1002/anie.201411909

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Deciphering charge transport through multichannel pathways in single-molecule junctions is of high importance to construct nanoscale electronic devices and deepen insight into biological redox processes. Herein, we report two tailor-made folded single-molecule wires featuring intramolecular pi-pi stacking interactions. The scanning tunneling microscope (STM) based break-junction technique and theoretical calculations show that through-bond and through-space conjugations are integrated into one single-molecule wire, allowing for two simultaneous conducting channels in a single-molecule junction. These folded molecules with stable pi-pi stacking interaction offer conceptual advances in single-molecule multichannel conductance, and are perfect models for conductance studies in biological systems, organic thin films, and pi-stacked columnar aggregates.

引用

页码：4231 / 4235

页数：5

共 35 条

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