Dependence of single-molecule conductance on molecule junction symmetry

Masateru Taniguchi; Makusu Tsutsui; Ryoji Mogi; Tadashi Sugawara; Yuta Tsuji; Kazunari Yoshizawa; Tomoji Kawai

doi:10.1021/ja2033926

Dependence of single-molecule conductance on molecule junction symmetry

Masateru Taniguchi, Makusu Tsutsui, Ryoji Mogi, Tadashi Sugawara, Yuta Tsuji, Kazunari Yoshizawa, Tomoji Kawai

Research output: Contribution to journal › Article › peer-review

78 Citations (Scopus)

Abstract

The symmetry of a molecule junction has been shown to play a significant role in determining the conductance of the molecule, but the details of how conductance changes with symmetry have heretofore been unknown. Herein, we investigate a naphthalenedithiol single-molecule system in which sulfur atoms from the molecule are anchored to two facing gold electrodes. In the studied system, the highest single-molecule conductance, for a molecule junction of 1,4-symmetry, is 110 times larger than the lowest single-molecule conductance, for a molecule junction of 2,7-symmetry. We demonstrate clearly that the measured dependence of molecule junction symmetry for single-molecule junctions agrees with theoretical predictions.

Original language	English
Pages (from-to)	11426-11429
Number of pages	4
Journal	Journal of the American Chemical Society
Volume	133
Issue number	30
DOIs	https://doi.org/10.1021/ja2033926
Publication status	Published - Aug 3 2011

All Science Journal Classification (ASJC) codes

Catalysis
Chemistry(all)
Biochemistry
Colloid and Surface Chemistry

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abstract = "The symmetry of a molecule junction has been shown to play a significant role in determining the conductance of the molecule, but the details of how conductance changes with symmetry have heretofore been unknown. Herein, we investigate a naphthalenedithiol single-molecule system in which sulfur atoms from the molecule are anchored to two facing gold electrodes. In the studied system, the highest single-molecule conductance, for a molecule junction of 1,4-symmetry, is 110 times larger than the lowest single-molecule conductance, for a molecule junction of 2,7-symmetry. We demonstrate clearly that the measured dependence of molecule junction symmetry for single-molecule junctions agrees with theoretical predictions.",

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AU - Taniguchi, Masateru

AU - Tsutsui, Makusu

AU - Mogi, Ryoji

AU - Sugawara, Tadashi

AU - Tsuji, Yuta

AU - Yoshizawa, Kazunari

AU - Kawai, Tomoji

PY - 2011/8/3

Y1 - 2011/8/3

N2 - The symmetry of a molecule junction has been shown to play a significant role in determining the conductance of the molecule, but the details of how conductance changes with symmetry have heretofore been unknown. Herein, we investigate a naphthalenedithiol single-molecule system in which sulfur atoms from the molecule are anchored to two facing gold electrodes. In the studied system, the highest single-molecule conductance, for a molecule junction of 1,4-symmetry, is 110 times larger than the lowest single-molecule conductance, for a molecule junction of 2,7-symmetry. We demonstrate clearly that the measured dependence of molecule junction symmetry for single-molecule junctions agrees with theoretical predictions.

AB - The symmetry of a molecule junction has been shown to play a significant role in determining the conductance of the molecule, but the details of how conductance changes with symmetry have heretofore been unknown. Herein, we investigate a naphthalenedithiol single-molecule system in which sulfur atoms from the molecule are anchored to two facing gold electrodes. In the studied system, the highest single-molecule conductance, for a molecule junction of 1,4-symmetry, is 110 times larger than the lowest single-molecule conductance, for a molecule junction of 2,7-symmetry. We demonstrate clearly that the measured dependence of molecule junction symmetry for single-molecule junctions agrees with theoretical predictions.

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Dependence of single-molecule conductance on molecule junction symmetry

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