Single-molecule conductance of a chemically modified, π-extended tetrathiafulvalene and its charge-transfer complex with F4TCNQ
We describe the synthesis and single-molecule electrical transport properties of a molecular wire containing a π-extended tetrathiafulvalene (exTTF) group and its charge-transfer complex with F4TCNQ. We form single-molecule junctions using the in situ break junction technique using a homebuilt scann...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Beilstein-Institut
2015-06-01
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| Series: | Beilstein Journal of Organic Chemistry |
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| Online Access: | https://doi.org/10.3762/bjoc.11.120 |
| _version_ | 1818642020195893248 |
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| author | Raúl García M. Ángeles Herranz Edmund Leary M. Teresa González Gabino Rubio Bollinger Marius Bürkle Linda A. Zotti Yoshihiro Asai Fabian Pauly Juan Carlos Cuevas Nicolás Agraït Nazario Martín |
| author_facet | Raúl García M. Ángeles Herranz Edmund Leary M. Teresa González Gabino Rubio Bollinger Marius Bürkle Linda A. Zotti Yoshihiro Asai Fabian Pauly Juan Carlos Cuevas Nicolás Agraït Nazario Martín |
| author_sort | Raúl García |
| collection | DOAJ |
| description | We describe the synthesis and single-molecule electrical transport properties of a molecular wire containing a π-extended tetrathiafulvalene (exTTF) group and its charge-transfer complex with F4TCNQ. We form single-molecule junctions using the in situ break junction technique using a homebuilt scanning tunneling microscope with a range of conductance between 10 G0 down to 10−7 G0. Within this range we do not observe a clear conductance signature of the neutral parent molecule, suggesting either that its conductance is too low or that it does not form a stable junction. Conversely, we do find a clear conductance signature in the experiments carried out on the charge-transfer complex. Due to the fact we expected this species to have a higher conductance than the neutral molecule, we believe this supports the idea that the conductance of the neutral molecule is very low, below our measurement sensitivity. This idea is further supported by theoretical calculations. To the best of our knowledge, these are the first reported single-molecule conductance measurements on a molecular charge-transfer species. |
| first_indexed | 2024-12-16T23:36:25Z |
| format | Article |
| id | doaj.art-fcfeb70f8256412d8991f7348b695d48 |
| institution | Directory Open Access Journal |
| issn | 1860-5397 |
| language | English |
| last_indexed | 2024-12-16T23:36:25Z |
| publishDate | 2015-06-01 |
| publisher | Beilstein-Institut |
| record_format | Article |
| series | Beilstein Journal of Organic Chemistry |
| spelling | doaj.art-fcfeb70f8256412d8991f7348b695d482022-12-21T22:11:45ZengBeilstein-InstitutBeilstein Journal of Organic Chemistry1860-53972015-06-011111068107810.3762/bjoc.11.1201860-5397-11-120Single-molecule conductance of a chemically modified, π-extended tetrathiafulvalene and its charge-transfer complex with F4TCNQRaúl García0M. Ángeles Herranz1Edmund Leary2M. Teresa González3Gabino Rubio Bollinger4Marius Bürkle5Linda A. Zotti6Yoshihiro Asai7Fabian Pauly8Juan Carlos Cuevas9Nicolás Agraït10Nazario Martín11Departamento de Química Orgánica, Facultad de Química, Universidad Complutense, E-28040 Madrid, SpainDepartamento de Química Orgánica, Facultad de Química, Universidad Complutense, E-28040 Madrid, SpainFundación IMDEA Nanoscience, Campus de Cantoblanco, Universidad Autónoma, E-28048 Madrid, SpainFundación IMDEA Nanoscience, Campus de Cantoblanco, Universidad Autónoma, E-28048 Madrid, SpainDepartamento de Física de la Materia Condensada, and Instituto “Nicolás Cabrera”, Universidad Autonoma de Madrid, E-28049 Madrid, SpainNanosystem Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8568, JapanDepartamento de Física Teórica de la Materia Condensada, Universidad Autónoma de Madrid, SpainNanosystem Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8568, JapanDepartment of Physics, University of Konstanz, D-78457 Konstanz, GermanyDepartamento de Física Teórica de la Materia Condensada, Universidad Autónoma de Madrid, SpainFundación IMDEA Nanoscience, Campus de Cantoblanco, Universidad Autónoma, E-28048 Madrid, SpainDepartamento de Química Orgánica, Facultad de Química, Universidad Complutense, E-28040 Madrid, SpainWe describe the synthesis and single-molecule electrical transport properties of a molecular wire containing a π-extended tetrathiafulvalene (exTTF) group and its charge-transfer complex with F4TCNQ. We form single-molecule junctions using the in situ break junction technique using a homebuilt scanning tunneling microscope with a range of conductance between 10 G0 down to 10−7 G0. Within this range we do not observe a clear conductance signature of the neutral parent molecule, suggesting either that its conductance is too low or that it does not form a stable junction. Conversely, we do find a clear conductance signature in the experiments carried out on the charge-transfer complex. Due to the fact we expected this species to have a higher conductance than the neutral molecule, we believe this supports the idea that the conductance of the neutral molecule is very low, below our measurement sensitivity. This idea is further supported by theoretical calculations. To the best of our knowledge, these are the first reported single-molecule conductance measurements on a molecular charge-transfer species.https://doi.org/10.3762/bjoc.11.120break junction measurementscharge-transfer complexDFT-based transportmolecular electronicstetrathiafulvalene |
| spellingShingle | Raúl García M. Ángeles Herranz Edmund Leary M. Teresa González Gabino Rubio Bollinger Marius Bürkle Linda A. Zotti Yoshihiro Asai Fabian Pauly Juan Carlos Cuevas Nicolás Agraït Nazario Martín Single-molecule conductance of a chemically modified, π-extended tetrathiafulvalene and its charge-transfer complex with F4TCNQ Beilstein Journal of Organic Chemistry break junction measurements charge-transfer complex DFT-based transport molecular electronics tetrathiafulvalene |
| title | Single-molecule conductance of a chemically modified, π-extended tetrathiafulvalene and its charge-transfer complex with F4TCNQ |
| title_full | Single-molecule conductance of a chemically modified, π-extended tetrathiafulvalene and its charge-transfer complex with F4TCNQ |
| title_fullStr | Single-molecule conductance of a chemically modified, π-extended tetrathiafulvalene and its charge-transfer complex with F4TCNQ |
| title_full_unstemmed | Single-molecule conductance of a chemically modified, π-extended tetrathiafulvalene and its charge-transfer complex with F4TCNQ |
| title_short | Single-molecule conductance of a chemically modified, π-extended tetrathiafulvalene and its charge-transfer complex with F4TCNQ |
| title_sort | single molecule conductance of a chemically modified π extended tetrathiafulvalene and its charge transfer complex with f4tcnq |
| topic | break junction measurements charge-transfer complex DFT-based transport molecular electronics tetrathiafulvalene |
| url | https://doi.org/10.3762/bjoc.11.120 |
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