Hydrophilicity and Microsolvation of an Organic Molecule Resolved on the Sub-molecular Level by Scanning Tunneling Microscopy
| Autor: | Dirk Loose, Maximilian Ruschmeier, Karsten Lucht, Valerie Strotkötter, Karina Morgenstern, Gerald Dyker |
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| Rok vydání: | 2018 |
| Předmět: |
Length scale
Chemistry Solvation General Medicine 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Photochemistry 01 natural sciences Catalysis 0104 chemical sciences law.invention Scanning probe microscopy Adsorption Molecular level Solvation shell law Molecule Scanning tunneling microscope 0210 nano-technology |
| Zdroj: | Angewandte Chemie International Edition. 57:1266-1270 |
| ISSN: | 1433-7851 |
| DOI: | 10.1002/anie.201711062 |
| Popis: | Low-temperature scanning tunneling microscopy was used to follow the formation of a solvation shell around an adsorbed functionalized azo dye from the attachment of the first water molecule to a fully solvated molecule. Specific functional groups bind initially one water molecule each, which act as anchor points for additional water molecules. Further water attachment occurs in areas close to these functional groups even when the functional groups themselves are already saturated. In contrast, water molecules surround the hydrophobic parts of the molecule only when the two-dimensional solvation shell closes around them. This study thus traces hydrophilic and hydrophobic properties of an organic molecule down to a sub-molecular length scale. |
| Databáze: | OpenAIRE |
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