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Oligoyne Single Molecule Wires

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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Oligoyne Single Molecule Wires. / Wang, Changsheng; Batsanov, Andrei S.; Bryce, Martin R. et al.
In: Journal of the American Chemical Society, Vol. 131, No. 43, 04.11.2009, p. 15647-15654.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Wang, C, Batsanov, AS, Bryce, MR, Martin, S, Nichols, RJ, Higgins, SJ, Garcia-Suarez, VM & Lambert, CJ 2009, 'Oligoyne Single Molecule Wires', Journal of the American Chemical Society, vol. 131, no. 43, pp. 15647-15654. https://doi.org/10.1021/ja9061129

APA

Wang, C., Batsanov, A. S., Bryce, M. R., Martin, S., Nichols, R. J., Higgins, S. J., Garcia-Suarez, V. M., & Lambert, C. J. (2009). Oligoyne Single Molecule Wires. Journal of the American Chemical Society, 131(43), 15647-15654. https://doi.org/10.1021/ja9061129

Vancouver

Wang C, Batsanov AS, Bryce MR, Martin S, Nichols RJ, Higgins SJ et al. Oligoyne Single Molecule Wires. Journal of the American Chemical Society. 2009 Nov 4;131(43):15647-15654. doi: 10.1021/ja9061129

Author

Wang, Changsheng ; Batsanov, Andrei S. ; Bryce, Martin R. et al. / Oligoyne Single Molecule Wires. In: Journal of the American Chemical Society. 2009 ; Vol. 131, No. 43. pp. 15647-15654.

Bibtex

@article{52ec9bb3a2fa4d7fbf1666e47512702f,
title = "Oligoyne Single Molecule Wires",
abstract = "We report the electrical conductance at the single molecule level of the oligoyne molecular wires Py-(C C)(n)-Py (n = 1, 2 and 4; Py = 4-pyridyl) using STM-molecular break junction techniques in Au vertical bar molecule vertical bar Au configurations. The conductance histograms reveal multiple series of peaks attributed to differing contact geometries between the pyridyl head groups and the gold electrodes. Both experimental and theoretical evidence point to the higher conduction groups being related to adsorption of the pyridyl group at more highly coordinated sites such as step edges or alongside gold adatoms. All three conduction groups in the oligoyne series show a remarkably low beta value of (0.06 +/- 0.03) angstrom(-1), that is, the conductance is almost independent of molecular length. 4,4'-Bipyridyl studied under the same conditions does not follow this exponential decay series. Theoretical calculations using a combination of density functional theory and nonequilibrium Green's function formalism support the experimental results. We conclude that oligoynes and polyynes are a very promising class of molecular wires for integration into electronic circuitry.",
author = "Changsheng Wang and Batsanov, {Andrei S.} and Bryce, {Martin R.} and Santiago Martin and Nichols, {Richard J.} and Higgins, {Simon J.} and Garcia-Suarez, {Victor M.} and Lambert, {Colin J.}",
year = "2009",
month = nov,
day = "4",
doi = "10.1021/ja9061129",
language = "English",
volume = "131",
pages = "15647--15654",
journal = "Journal of the American Chemical Society",
issn = "0002-7863",
publisher = "AMER CHEMICAL SOC",
number = "43",

}

RIS

TY - JOUR

T1 - Oligoyne Single Molecule Wires

AU - Wang, Changsheng

AU - Batsanov, Andrei S.

AU - Bryce, Martin R.

AU - Martin, Santiago

AU - Nichols, Richard J.

AU - Higgins, Simon J.

AU - Garcia-Suarez, Victor M.

AU - Lambert, Colin J.

PY - 2009/11/4

Y1 - 2009/11/4

N2 - We report the electrical conductance at the single molecule level of the oligoyne molecular wires Py-(C C)(n)-Py (n = 1, 2 and 4; Py = 4-pyridyl) using STM-molecular break junction techniques in Au vertical bar molecule vertical bar Au configurations. The conductance histograms reveal multiple series of peaks attributed to differing contact geometries between the pyridyl head groups and the gold electrodes. Both experimental and theoretical evidence point to the higher conduction groups being related to adsorption of the pyridyl group at more highly coordinated sites such as step edges or alongside gold adatoms. All three conduction groups in the oligoyne series show a remarkably low beta value of (0.06 +/- 0.03) angstrom(-1), that is, the conductance is almost independent of molecular length. 4,4'-Bipyridyl studied under the same conditions does not follow this exponential decay series. Theoretical calculations using a combination of density functional theory and nonequilibrium Green's function formalism support the experimental results. We conclude that oligoynes and polyynes are a very promising class of molecular wires for integration into electronic circuitry.

AB - We report the electrical conductance at the single molecule level of the oligoyne molecular wires Py-(C C)(n)-Py (n = 1, 2 and 4; Py = 4-pyridyl) using STM-molecular break junction techniques in Au vertical bar molecule vertical bar Au configurations. The conductance histograms reveal multiple series of peaks attributed to differing contact geometries between the pyridyl head groups and the gold electrodes. Both experimental and theoretical evidence point to the higher conduction groups being related to adsorption of the pyridyl group at more highly coordinated sites such as step edges or alongside gold adatoms. All three conduction groups in the oligoyne series show a remarkably low beta value of (0.06 +/- 0.03) angstrom(-1), that is, the conductance is almost independent of molecular length. 4,4'-Bipyridyl studied under the same conditions does not follow this exponential decay series. Theoretical calculations using a combination of density functional theory and nonequilibrium Green's function formalism support the experimental results. We conclude that oligoynes and polyynes are a very promising class of molecular wires for integration into electronic circuitry.

UR - http://www.scopus.com/inward/record.url?scp=70350656070&partnerID=8YFLogxK

U2 - 10.1021/ja9061129

DO - 10.1021/ja9061129

M3 - Journal article

VL - 131

SP - 15647

EP - 15654

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

SN - 0002-7863

IS - 43

ER -