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Synthetic Control of Quantum Interference by Regulating Charge on a Single Atom in Heteroaromatic Molecular Junctions

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

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Synthetic Control of Quantum Interference by Regulating Charge on a Single Atom in Heteroaromatic Molecular Junctions. / Naghibi, S.; Ismael, A.K.; Vezzoli, A. et al.
In: Journal of Physical Chemistry Letters, Vol. 10, No. 20, 17.10.2019, p. 6419-6424.

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

Harvard

Naghibi, S, Ismael, AK, Vezzoli, A, Al-Khaykanee, MK, Zheng, X, Grace, IM, Bethell, D, Higgins, SJ, Lambert, CJ & Nichols, RJ 2019, 'Synthetic Control of Quantum Interference by Regulating Charge on a Single Atom in Heteroaromatic Molecular Junctions', Journal of Physical Chemistry Letters, vol. 10, no. 20, pp. 6419-6424. https://doi.org/10.1021/acs.jpclett.9b02319

APA

Naghibi, S., Ismael, A. K., Vezzoli, A., Al-Khaykanee, M. K., Zheng, X., Grace, I. M., Bethell, D., Higgins, S. J., Lambert, C. J., & Nichols, R. J. (2019). Synthetic Control of Quantum Interference by Regulating Charge on a Single Atom in Heteroaromatic Molecular Junctions. Journal of Physical Chemistry Letters, 10(20), 6419-6424. https://doi.org/10.1021/acs.jpclett.9b02319

Vancouver

Naghibi S, Ismael AK, Vezzoli A, Al-Khaykanee MK, Zheng X, Grace IM et al. Synthetic Control of Quantum Interference by Regulating Charge on a Single Atom in Heteroaromatic Molecular Junctions. Journal of Physical Chemistry Letters. 2019 Oct 17;10(20):6419-6424. Epub 2019 Oct 2. doi: 10.1021/acs.jpclett.9b02319

Author

Naghibi, S. ; Ismael, A.K. ; Vezzoli, A. et al. / Synthetic Control of Quantum Interference by Regulating Charge on a Single Atom in Heteroaromatic Molecular Junctions. In: Journal of Physical Chemistry Letters. 2019 ; Vol. 10, No. 20. pp. 6419-6424.

Bibtex

@article{ae24dca8777d4fab808f830c676396b7,
title = "Synthetic Control of Quantum Interference by Regulating Charge on a Single Atom in Heteroaromatic Molecular Junctions",
abstract = "A key area of activity in contemporary molecular electronics is the chemical control of conductance of molecular junctions and devices. Here we study and modify a range of pyrrolodipyridines (carbazole-like) molecular wires. We are able to change the electrical conductance and quantum interference patterns by chemically regulating the bridging nitrogen atom in the tricyclic ring system. A series of eight different N-substituted pyrrolodipyridines has been synthesized and subjected to single-molecule electrical characterization using an STM break junction. Correlations of these experimental data with theoretical calculations underline the importance of the pyrrolic nitrogen in facilitating conductance across the molecular bridge and controlling quantum interference. The large chemical modulation for the meta-connected series is not apparent for the para-series, showing the competition between (i) meta-connectivity quantum interference phenomena and (ii) the ability of the pyrrolic nitrogen to facilitate conductance, that can be modulated by chemical substitution.",
author = "S. Naghibi and A.K. Ismael and A. Vezzoli and M.K. Al-Khaykanee and X. Zheng and I.M. Grace and D. Bethell and S.J. Higgins and C.J. Lambert and R.J. Nichols",
year = "2019",
month = oct,
day = "17",
doi = "10.1021/acs.jpclett.9b02319",
language = "English",
volume = "10",
pages = "6419--6424",
journal = "Journal of Physical Chemistry Letters",
issn = "1948-7185",
publisher = "American Chemical Society",
number = "20",

}

RIS

TY - JOUR

T1 - Synthetic Control of Quantum Interference by Regulating Charge on a Single Atom in Heteroaromatic Molecular Junctions

AU - Naghibi, S.

AU - Ismael, A.K.

AU - Vezzoli, A.

AU - Al-Khaykanee, M.K.

AU - Zheng, X.

AU - Grace, I.M.

AU - Bethell, D.

AU - Higgins, S.J.

AU - Lambert, C.J.

AU - Nichols, R.J.

PY - 2019/10/17

Y1 - 2019/10/17

N2 - A key area of activity in contemporary molecular electronics is the chemical control of conductance of molecular junctions and devices. Here we study and modify a range of pyrrolodipyridines (carbazole-like) molecular wires. We are able to change the electrical conductance and quantum interference patterns by chemically regulating the bridging nitrogen atom in the tricyclic ring system. A series of eight different N-substituted pyrrolodipyridines has been synthesized and subjected to single-molecule electrical characterization using an STM break junction. Correlations of these experimental data with theoretical calculations underline the importance of the pyrrolic nitrogen in facilitating conductance across the molecular bridge and controlling quantum interference. The large chemical modulation for the meta-connected series is not apparent for the para-series, showing the competition between (i) meta-connectivity quantum interference phenomena and (ii) the ability of the pyrrolic nitrogen to facilitate conductance, that can be modulated by chemical substitution.

AB - A key area of activity in contemporary molecular electronics is the chemical control of conductance of molecular junctions and devices. Here we study and modify a range of pyrrolodipyridines (carbazole-like) molecular wires. We are able to change the electrical conductance and quantum interference patterns by chemically regulating the bridging nitrogen atom in the tricyclic ring system. A series of eight different N-substituted pyrrolodipyridines has been synthesized and subjected to single-molecule electrical characterization using an STM break junction. Correlations of these experimental data with theoretical calculations underline the importance of the pyrrolic nitrogen in facilitating conductance across the molecular bridge and controlling quantum interference. The large chemical modulation for the meta-connected series is not apparent for the para-series, showing the competition between (i) meta-connectivity quantum interference phenomena and (ii) the ability of the pyrrolic nitrogen to facilitate conductance, that can be modulated by chemical substitution.

U2 - 10.1021/acs.jpclett.9b02319

DO - 10.1021/acs.jpclett.9b02319

M3 - Journal article

VL - 10

SP - 6419

EP - 6424

JO - Journal of Physical Chemistry Letters

JF - Journal of Physical Chemistry Letters

SN - 1948-7185

IS - 20

ER -