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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F21%3A43922942" target="_blank" >RIV/60461373:22310/21:43922942 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985858:_____/21:00550044 RIV/61388963:_____/21:00550044 RIV/00216275:25310/21:39917531

Výsledek na webu

<a href="https://pubs-rsc-org.ezproxy.vscht.cz/en/content/articlelanding/2021/SC/D0SC05898J" target="_blank" >https://pubs-rsc-org.ezproxy.vscht.cz/en/content/articlelanding/2021/SC/D0SC05898J</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/d0sc05898j" target="_blank" >10.1039/d0sc05898j</a>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

Plasmon assistance promotes a range of chemical transformations by decreasing their activation energies. In a common case, thermal and plasmon assistance work synergistically: higher temperature results in higher plasmon-enhanced catalysis efficiency. Herein, we report an unexpected tenfold increase in the reaction efficiency of surface plasmon-assisted Huisgen dipolar azide-alkyne cycloaddition (AAC) when the reaction mixture is cooled from room temperature to −35 °C. We attribute the observed increase in the reaction efficiency to complete plasmon-induced annihilation of the reaction barrier, prolongation of plasmon lifetime, and decreased relaxation of plasmon-excited-states under cooling. Furthermore, control quenching experiments supported by theoretical calculations indicate that plasmon-mediated substrate excitation to an electronic triplet state may play the key role in plasmon-assisted chemical transformation. Last but not least, we demonstrated the possible applicability of plasmon assistance to biological systems by AAC coupling of biotin to gold nanoparticles performed at −35 °C.

Název v anglickém jazyce

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

Popis výsledku anglicky

Plasmon assistance promotes a range of chemical transformations by decreasing their activation energies. In a common case, thermal and plasmon assistance work synergistically: higher temperature results in higher plasmon-enhanced catalysis efficiency. Herein, we report an unexpected tenfold increase in the reaction efficiency of surface plasmon-assisted Huisgen dipolar azide-alkyne cycloaddition (AAC) when the reaction mixture is cooled from room temperature to −35 °C. We attribute the observed increase in the reaction efficiency to complete plasmon-induced annihilation of the reaction barrier, prolongation of plasmon lifetime, and decreased relaxation of plasmon-excited-states under cooling. Furthermore, control quenching experiments supported by theoretical calculations indicate that plasmon-mediated substrate excitation to an electronic triplet state may play the key role in plasmon-assisted chemical transformation. Last but not least, we demonstrated the possible applicability of plasmon assistance to biological systems by AAC coupling of biotin to gold nanoparticles performed at −35 °C.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Chemical Science

ISSN

2041-6520

e-ISSN

—

Svazek periodika

12

Číslo periodika v rámci svazku

15

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

5591-5598

Kód UT WoS článku

000655250200021

EID výsledku v databázi Scopus

2-s2.0-85104858257