Volume 133, Issue 12 pp. 6683-6690
Forschungsartikel

Single-Molecule Conductance of 1,4-Azaborine Derivatives as Models of BN-doped PAHs

Lucía Palomino-Ruiz

Lucía Palomino-Ruiz

Departamento de Química Orgánica, Facultad de Ciencias, Unidad de Excelencia de Química Aplicada a Biomedicina y Medioambiente (UEQ), Universidad de Granada, 18071 Granada, Spain

Fundación IMDEA Nanociencia, 28049 Madrid, Spain

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Dr. Sandra Rodríguez-González

Dr. Sandra Rodríguez-González

Departamento de Química, Módulo 13, Universidad Autónoma de Madrid, 28049 Madrid, Spain

Present address: Departamento de Química Física, Facultad de Ciencias, Universidad de Málaga, 29071 Málaga, Spain

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Joel G. Fallaque

Joel G. Fallaque

Fundación IMDEA Nanociencia, 28049 Madrid, Spain

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Dr. Irene R. Márquez

Dr. Irene R. Márquez

Departamento de Química Orgánica, Facultad de Ciencias, Unidad de Excelencia de Química Aplicada a Biomedicina y Medioambiente (UEQ), Universidad de Granada, 18071 Granada, Spain

Centro de Instrumentación Científica, Universidad de Granada, 18071 Granada, Spain

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Prof. Dr. Nicolás Agraït

Prof. Dr. Nicolás Agraït

Fundación IMDEA Nanociencia, 28049 Madrid, Spain

Departamento de Física de la Materia Condensada, Universidad Autónoma de Madrid, 28049 Madrid, Spain

Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, 28049 Madrid, Spain

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Dr. Cristina Díaz

Dr. Cristina Díaz

Departamento de Química, Módulo 13, Universidad Autónoma de Madrid, 28049 Madrid, Spain

Present address: Departamento de Química Física, Facultad de CC. Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain

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Dr. Edmund Leary

Dr. Edmund Leary

Fundación IMDEA Nanociencia, 28049 Madrid, Spain

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Prof. Dr. Juan M. Cuerva

Prof. Dr. Juan M. Cuerva

Departamento de Química Orgánica, Facultad de Ciencias, Unidad de Excelencia de Química Aplicada a Biomedicina y Medioambiente (UEQ), Universidad de Granada, 18071 Granada, Spain

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Dr. Araceli G. Campaña

Dr. Araceli G. Campaña

Departamento de Química Orgánica, Facultad de Ciencias, Unidad de Excelencia de Química Aplicada a Biomedicina y Medioambiente (UEQ), Universidad de Granada, 18071 Granada, Spain

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Prof. Dr. Fernando Martín

Corresponding Author

Prof. Dr. Fernando Martín

Fundación IMDEA Nanociencia, 28049 Madrid, Spain

Departamento de Química, Módulo 13, Universidad Autónoma de Madrid, 28049 Madrid, Spain

Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, 28049 Madrid, Spain

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Dr. Alba Millán

Corresponding Author

Dr. Alba Millán

Departamento de Química Orgánica, Facultad de Ciencias, Unidad de Excelencia de Química Aplicada a Biomedicina y Medioambiente (UEQ), Universidad de Granada, 18071 Granada, Spain

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Dr. M. Teresa González

Corresponding Author

Dr. M. Teresa González

Fundación IMDEA Nanociencia, 28049 Madrid, Spain

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First published: 21 December 2020
Citations: 4

In memory of Professor Kilian Muñiz

Abstract

The single-molecule conductance of a series of BN-acene-like derivatives has been measured by using scanning tunneling break-junction techniques. A strategic design of the target molecules has allowed us to include azaborine units in positions that unambiguously ensure electron transport through both heteroatoms, which is relevant for the development of customized BN-doped nanographenes. We show that the conductance of the anthracene azaborine derivative is comparable to that of the pristine all-carbon anthracene compound. Notably, this heteroatom substitution has also allowed us to perform similar measurements on the corresponding pentacene-like compound, which is found to have a similar conductance, thus evidencing that B–N doping could also be used to stabilize and characterize larger acenes for molecular electronics applications. Our conclusions are supported by state-of-the-art transport calculations.

Conflict of interest

The authors declare no conflict of interest.

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