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Hemilabile Ligands as Mechanosensitive Electrode Contacts for Molecular Electronics
| Content Provider | Scilit |
|---|---|
| Author | Ferri, Nicolò Algethami, Norah Vezzoli, Andrea Sangtarash, Sara McLaughlin, Maeve Sadeghi, Hatef Lambert, Colin J. Nichols, Richard J. Higgins, Simon J. |
| Copyright Year | 2019 |
| Description | Journal: Angewandte Chemie International Edition Single‐molecule junctions that are sensitive to compression or elongation are an emerging class of nanoelectromechanical systems (NEMS). Although the molecule–electrode interface can be engineered to impart such functionality, most studies to date rely on poorly defined interactions. We focused on this issue by synthesizing molecular wires designed to have chemically defined hemilabile contacts based on (methylthio)thiophene moieties. We measured their conductance as a function of junction size and observed conductance changes of up to two orders of magnitude as junctions were compressed and stretched. Localised interactions between weakly coordinating thienyl sulfurs and the electrodes are responsible for the observed effect and allow reversible monodentate⇄bidentate contact transitions as the junction is modulated in size. We observed an up to ≈100‐fold sensitivity boost of the (methylthio)thiophene‐terminated molecular wire compared with its non‐hemilabile (methylthio)benzene counterpart and demonstrate a previously unexplored application of hemilabile ligands to molecular electronics. |
| Related Links | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6899542/pdf |
| Ending Page | 16589 |
| Page Count | 7 |
| Starting Page | 16583 |
| ISSN | 14337851 |
| e-ISSN | 15213773 |
| DOI | 10.1002/anie.201906400 |
| Journal | Angewandte Chemie International Edition |
| Issue Number | 46 |
| Volume Number | 58 |
| Language | English |
| Publisher | Wiley-Blackwell |
| Publisher Date | 2019-08-19 |
| Access Restriction | Open |
| Subject Keyword | Journal: Angewandte Chemie International Edition Atomic, Molecular and Chemical Physics Density Functional Calculations Hemilabile Ligands Molecular Devices Molecular Electronics Sulfur Ligands |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Catalysis |
