10.1021/acs.jpclett.9b00629.s001
Fuminao Kishimoto
Fuminao
Kishimoto
Masayuki Matsuhisa
Masayuki
Matsuhisa
Takashi Imai
Takashi
Imai
Dai Mochizuki
Dai
Mochizuki
Shuntaro Tsubaki
Shuntaro
Tsubaki
Masato M. Maitani
Masato M.
Maitani
Eiichi Suzuki
Eiichi
Suzuki
Yuji Wada
Yuji
Wada
Remote Control of Electron Transfer Reaction by Microwave
Irradiation: Kinetic Demonstration of Reduction of Bipyridine Derivatives
on Surface of Nickel Particle
American Chemical Society
2019
bipyridine derivatives
metal nickel particles
control chemical reactions
2.45 GHz microwaves
electron transfer reactions
Electron Transfer Reaction
electron transfer
electron transfer reaction
Nickel Particle Microwave irradiation
2019-05-03 00:00:00
Journal contribution
https://acs.figshare.com/articles/journal_contribution/Remote_Control_of_Electron_Transfer_Reaction_by_Microwave_Irradiation_Kinetic_Demonstration_of_Reduction_of_Bipyridine_Derivatives_on_Surface_of_Nickel_Particle/8236073
Microwave
irradiation has great potential to control chemical reactions
remotely, particularly reactions that involve electron transfer. In
this study, we found that the reduction reaction of bipyridine derivatives
on metal nickel particles was accelerated or decelerated by 2.45 GHz
microwaves without an alteration of the reaction temperature. The
order of the extent of the microwave acceleration of the electron
transfer reaction coincided with the negativity of the redox potential
of the bipyridine derivatives, i.e., the electron transfer with smaller
Δ<i>G</i> was significantly enhanced by microwave
irradiation. By applying Marcus’ electron transfer theory,
we propose two mechanisms of the microwave effect on electron transfer
reactions, i.e., vibration of the electrons in Ni particles to make
the electron transfer easier and rotation of the water molecules to
prevent the reorganization of the hydrated systems after the electron
transfer reaction.