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

ABSTRACT: 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 pla

SUBMITTER: Guselnikova O 

PROVIDER: S-EPMC8179579 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature