Plasmon catalysis has recently generated tremendous interest in the field of modern chemistry. Application of plasmon introduces the principally new stimulus for the activation of organic reactions, keeping the optical energy concentrated in the vicinity of plasmonic structure, creating an optical near-field enhancement as well as hot electron injection. In this work, for the first time, we presented a new way for the initiation of the azide-alkyne cycloaddition (AAC) using the surface plasmon-polariton wave, supported by the gold grating. With this concept in hand, the plasmon-active gold grating was functionalized with 4-ethynylbenzenediazonium compound. Then, surface-grafted 4-ethynylphenyl groups were plasmon activated and clicked with 4-azidobenzoic acid. Additional experiments allowed to exclude the potential effect of photon, heating, and metal impurities confirmed the key role of surface plasmon-polariton AAC activation. For the investigation of plasmon-induced AAC mechanism, 4-azidophenyl groups (instead of 4-ethynylphenyl groups) were also grafted to the grating surface. Further careful evaluation of reaction kinetics demonstrates that the AAC reaction rate is significantly higher in the case of acetylene activation than in the case of azide activation.

Department of Solid State Engineering University of Chemistry and Technology 16628 Prague Czech Republic

Research School of Chemistry and Applied Biomedical Sciences Tomsk Polytechnic University Tomsk 634050 Russian Federation

Université Paris Est UMR 7182 CNRS UPEC 94320 Thiais France

Citace poskytuje Crossref.org

Light Entrapment by Plasmonic Chiral Lock for Enhancement of 2D Flakes Catalytic Activity

Smart Modulators Based on Electric Field-Triggering of Surface Plasmon-Polariton for Active Plasmonics

Plasmon-assisted click chemistry at low temperature: an inverse temperature effect on the reaction rate

Establishing plasmon contribution to chemical reactions: alkoxyamines as a thermal probe

New Variants of Nitroxide Mediated Polymerization

Preparation of Selective and Reproducible SERS Sensors of Hg2+ Ions via a Sunlight-Induced Thiol⁻Yne Reaction on Gold Gratings