Molecule‐Electrode Interfaces Controlled by Bulky Long‐Legged Ligands in Organometallic Molecular Wires
Abstract Precise control of molecule‐electrode interface is essential for molecular devices. Herein, new ruthenium acetylide molecular wires with long‐legged phosphine ligands to form a sterically controlled molecule‐electrode interface are designed. The sharpened Raman signals ascribed to acetylene...
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| Format: | Article |
| Language: | English |
| Published: |
Wiley-VCH
2023-04-01
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| Series: | Advanced Materials Interfaces |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/admi.202202464 |
| _version_ | 1797772401768923136 |
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| author | Yuya Tanaka Yeana Bae Fumiya Ogasawara Keita Suzuki Shuji Kobayashi Satoshi Kaneko Shintaro Fujii Tomoaki Nishino Munetaka Akita |
| author_facet | Yuya Tanaka Yeana Bae Fumiya Ogasawara Keita Suzuki Shuji Kobayashi Satoshi Kaneko Shintaro Fujii Tomoaki Nishino Munetaka Akita |
| author_sort | Yuya Tanaka |
| collection | DOAJ |
| description | Abstract Precise control of molecule‐electrode interface is essential for molecular devices. Herein, new ruthenium acetylide molecular wires with long‐legged phosphine ligands to form a sterically controlled molecule‐electrode interface are designed. The sharpened Raman signals ascribed to acetylene stretching are observed for the self‐assembled monolayers (SAMs) of the molecular wires with the biphenyl‐ (2Au) and tert‐butylbiphenyl‐substituted long‐legged dppe‐type ligands (3Au), suggesting that steric hindrance causes formation of uniform SAMs. Scanning tunneling microscope break‐junction (STM‐BJ) study of 3Au reveals narrow conductance features compared with those of 1Au bearing the parent dppe ligands, indicating formation of a uniform molecular junction. Furthermore, the effective electronic interactions between the molecule and electrodes are unique to the long‐legged derivatives, as revealed by the surface‐enhanced Raman scattering study. Thus, the bulky long‐legged strategy turns out to provide a design concept for a well‐defined molecule‐electrode interface. |
| first_indexed | 2024-03-12T21:51:17Z |
| format | Article |
| id | doaj.art-8dc80d01ca2e460fb586178c2dc54320 |
| institution | Directory Open Access Journal |
| issn | 2196-7350 |
| language | English |
| last_indexed | 2024-03-12T21:51:17Z |
| publishDate | 2023-04-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Advanced Materials Interfaces |
| spelling | doaj.art-8dc80d01ca2e460fb586178c2dc543202023-07-26T01:40:38ZengWiley-VCHAdvanced Materials Interfaces2196-73502023-04-011011n/an/a10.1002/admi.202202464Molecule‐Electrode Interfaces Controlled by Bulky Long‐Legged Ligands in Organometallic Molecular WiresYuya Tanaka0Yeana Bae1Fumiya Ogasawara2Keita Suzuki3Shuji Kobayashi4Satoshi Kaneko5Shintaro Fujii6Tomoaki Nishino7Munetaka Akita8Laboratory for Chemistry and Life Science Institute of Innovative Research Tokyo Institute of Technology 4259 Nagatsuta, Midori‐ku Yokohama 226–8503 JapanLaboratory for Chemistry and Life Science Institute of Innovative Research Tokyo Institute of Technology 4259 Nagatsuta, Midori‐ku Yokohama 226–8503 JapanLaboratory for Chemistry and Life Science Institute of Innovative Research Tokyo Institute of Technology 4259 Nagatsuta, Midori‐ku Yokohama 226–8503 JapanLaboratory for Chemistry and Life Science Institute of Innovative Research Tokyo Institute of Technology 4259 Nagatsuta, Midori‐ku Yokohama 226–8503 JapanDepartment of Chemistry School of Science School of Materials and Chemical Technology Tokyo Institute of Technology 2‐12‐1 Ookayama, Meguro‐ku Tokyo 152–8551 JapanDepartment of Chemistry School of Science School of Materials and Chemical Technology Tokyo Institute of Technology 2‐12‐1 Ookayama, Meguro‐ku Tokyo 152–8551 JapanDepartment of Chemistry School of Science School of Materials and Chemical Technology Tokyo Institute of Technology 2‐12‐1 Ookayama, Meguro‐ku Tokyo 152–8551 JapanDepartment of Chemistry School of Science School of Materials and Chemical Technology Tokyo Institute of Technology 2‐12‐1 Ookayama, Meguro‐ku Tokyo 152–8551 JapanLaboratory for Chemistry and Life Science Institute of Innovative Research Tokyo Institute of Technology 4259 Nagatsuta, Midori‐ku Yokohama 226–8503 JapanAbstract Precise control of molecule‐electrode interface is essential for molecular devices. Herein, new ruthenium acetylide molecular wires with long‐legged phosphine ligands to form a sterically controlled molecule‐electrode interface are designed. The sharpened Raman signals ascribed to acetylene stretching are observed for the self‐assembled monolayers (SAMs) of the molecular wires with the biphenyl‐ (2Au) and tert‐butylbiphenyl‐substituted long‐legged dppe‐type ligands (3Au), suggesting that steric hindrance causes formation of uniform SAMs. Scanning tunneling microscope break‐junction (STM‐BJ) study of 3Au reveals narrow conductance features compared with those of 1Au bearing the parent dppe ligands, indicating formation of a uniform molecular junction. Furthermore, the effective electronic interactions between the molecule and electrodes are unique to the long‐legged derivatives, as revealed by the surface‐enhanced Raman scattering study. Thus, the bulky long‐legged strategy turns out to provide a design concept for a well‐defined molecule‐electrode interface.https://doi.org/10.1002/admi.202202464long‐legged ligandmetal acetyidemolecular junctionRaman spectroscopySERS |
| spellingShingle | Yuya Tanaka Yeana Bae Fumiya Ogasawara Keita Suzuki Shuji Kobayashi Satoshi Kaneko Shintaro Fujii Tomoaki Nishino Munetaka Akita Molecule‐Electrode Interfaces Controlled by Bulky Long‐Legged Ligands in Organometallic Molecular Wires Advanced Materials Interfaces long‐legged ligand metal acetyide molecular junction Raman spectroscopy SERS |
| title | Molecule‐Electrode Interfaces Controlled by Bulky Long‐Legged Ligands in Organometallic Molecular Wires |
| title_full | Molecule‐Electrode Interfaces Controlled by Bulky Long‐Legged Ligands in Organometallic Molecular Wires |
| title_fullStr | Molecule‐Electrode Interfaces Controlled by Bulky Long‐Legged Ligands in Organometallic Molecular Wires |
| title_full_unstemmed | Molecule‐Electrode Interfaces Controlled by Bulky Long‐Legged Ligands in Organometallic Molecular Wires |
| title_short | Molecule‐Electrode Interfaces Controlled by Bulky Long‐Legged Ligands in Organometallic Molecular Wires |
| title_sort | molecule electrode interfaces controlled by bulky long legged ligands in organometallic molecular wires |
| topic | long‐legged ligand metal acetyide molecular junction Raman spectroscopy SERS |
| url | https://doi.org/10.1002/admi.202202464 |
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