Direct Measurement of Singlet−Triplet Splitting within Rodlike Photogenerated Radical Ion Pairs Using Magnetic Field Effects:  Estimation of the Electronic Coupling for Charge Recombination

2003 ◽  
Vol 107 (19) ◽  
pp. 3639-3647 ◽  
Author(s):  
Emily A. Weiss ◽  
Mark A. Ratner ◽  
Michael R. Wasielewski
Keyword(s):  
Magnetic Field ◽  
Direct Measurement ◽  
Ion Pairs ◽  
Charge Recombination ◽  
Electronic Coupling ◽  
Magnetic Field Effects ◽  
Field Effects ◽  
Triplet Splitting

Magnetic field effects in rigidly linked D-A dyads: Extreme on-resonance quantum coherence effect on charge recombination

2019 ◽  
Vol 151 (24) ◽  
pp. 244308 ◽  
Author(s):  
David Mims ◽  
Alexander Schmiedel ◽  
Marco Holzapfel ◽  
Nikita N. Lukzen ◽  
Christoph Lambert ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Quantum Coherence ◽  
Charge Recombination ◽  
Magnetic Field Effects ◽  
Field Effects ◽  
Coherence Effect

scholarly journals Time-Resolved Magnetic Field Effects Distinguish Loose Ion Pairs from Exciplexes

2013 ◽  
Vol 135 (40) ◽  
pp. 15144-15152 ◽  
Author(s):  
Sabine Richert ◽  
Arnulf Rosspeintner ◽  
Stephan Landgraf ◽  
Günter Grampp ◽  
Eric Vauthey ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Ion Pairs ◽  
Magnetic Field Effects ◽  
Time Resolved ◽  
Field Effects

Solvent Radical Anions in Irradiated Aliphatic Ketones and Esters as Observed Using Time-Resolved Magnetic Field Effects in the Recombination Fluorescence

2017 ◽  
Vol 231 (2) ◽  
Author(s):  
Vsevolod Borovkov ◽  
Andrey Taratayko ◽  
Alena Bessmertnykh ◽  
Victor Bagryansky ◽  
Yuriy Molin
Keyword(s):  
Magnetic Field ◽  
Ion Pairs ◽  
Delayed Fluorescence ◽  
Magnetic Field Effects ◽  
Time Resolved ◽  
Field Effects ◽  
Aliphatic Ketones ◽  
Stabilization Effect ◽  
Recombination Fluorescence ◽  
Hyperfine Couplings

AbstractIt has been found that addition of alcohols (~0.1 M) to some liquid ketones and esters results in well-pronounced oscillations in the decay of the delayed fluorescence intensity from irradiated solutions. The analysis of the time-resolved magnetic field effects (TR MFEs) in the recombination fluorescence has shown that these oscillations are a manifestation of singlet-triplet transitions in spin-correlated radical ion pairs (RIPs) created by irradiation. Comparison with literature data indicates that the transitions are due to hyperfine couplings (HFCs) in the solvent radical anion (RA), stabilized due to the presence of alcohol molecules. In acetone, this stabilization effect has been observed for methanol, ethanol, 2- propanol, and, to a smaller extent, for

Sign in / Sign up

Export Citation Format

Share Document