Analysis of the recombination probability of geminate triplet radical ion pairs at single encounter by means of magnetic field effects

2001 ◽  
Vol 114 (21) ◽  
pp. 9492-9495 ◽  
Author(s):  
N. L. Lavrik
Keyword(s):  
Magnetic Field ◽  
Ion Pairs ◽  
Magnetic Field Effects ◽  
Recombination Probability ◽  
Field Effects

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

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