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- Title
On‐Surface Formation of Cyano‐Vinylene Linked Chains by Knoevenagel Condensation.
- Authors
Au‐Yeung, Kwan Ho; Kühne, Tim; Becker, Daniel; Richter, Marcus; Ryndyk, Dmitry A.; Cuniberti, Gianaurelio; Heine, Thomas; Feng, Xinliang; Moresco, Francesca
- Abstract
The rapid development of on‐surface synthesis provides a unique approach toward the formation of carbon‐based nanostructures with designed properties. Herein, we present the on‐surface formation of CN‐substituted phenylene vinylene chains on the Au(111) surface, thermally induced by annealing the substrate stepwise at temperatures between 220 °C and 240 °C. The reaction is investigated by scanning tunneling microscopy and density functional theory. Supported by the calculated reaction pathway, we assign the observed chain formation to a Knoevenagel condensation between an aldehyde and a methylene nitrile substituent.
- Subjects
SCANNING tunneling microscopy; CONDENSATION; DENSITY functional theory; SCANNING probe microscopy
- Publication
Chemistry - A European Journal, 2021, Vol 27, Issue 69, p17336
- ISSN
0947-6539
- Publication type
Academic Journal
- DOI
10.1002/chem.202103094