On Relations Between Singlet and Triplet Recombination Yields for Singlet and Triplet Precursors
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Alexander B. Doktorov
Abstract
The relations have been analytically derived for recombination yields of radical pairs with different precursor states and by different reaction channels (singlet and/or triplet) in arbitrary magnetic and microwave fields. Recombination of two particles from a radical pair mostly with anisotropic reactivity is assumed to take place in a narrow reaction zone, and relative translation motion including rotation of reactants may be an arbitrary stochastic process. In addition, the approach may take into account the time-dependent spin Hamiltonian. The novel method for the calculation of recombination yields is suggested, and general expressions for recombination yields are derived for strong singlet-triplet dephasing. Some of the relations and expressions are the basis of the results given in the literature and their generalization to the case of non-model reacting systems that does not use simplification of reactants structure and reactants motion in solutions.
Dedicated to: Kev Salikhov on the occasion of his 80th birthday.
Acknowledgements
The author is grateful to the Federal Agency of Scientific Organizations for financial support (project No 44.1.5.) and to Dr. Pedersen J.B. for stimulating discussions.
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©2017 Walter de Gruyter GmbH, Berlin/Boston
Articles in the same Issue
- Frontmatter
- Preface
- Editorial Review
- From Free Radicals and Spin-Chemistry Over Spin-Dynamics and Hyperpolarization to Biology and Materials Science
- On Relations Between Singlet and Triplet Recombination Yields for Singlet and Triplet Precursors
- The Quantum Dynamical Basis of a Classical Kinetic Scheme Describing Coherent and Incoherent Regimes of Radical Pair Recombination
- Reaction Operators for Radical Pairs. The Exactly Solvable Model
- Estimation of the Fraction of Spin-Correlated Radical Ion Pairs in Irradiated Alkanes using Magnetosensitive Recombination Luminescence from Exciplexes Generated upon Recombination of a Probe Pair
- Theoretical Description of Pulsed RYDMR: Refocusing Zero-Quantum and Single Quantum Coherences
- A Transient EPR Study of Electron Transfer in Tetrathiafulvalene-Aluminum(III) Porphyrin-Anthraquinone Supramolecular Triads
- Solvent Radical Anions in Irradiated Aliphatic Ketones and Esters as Observed Using Time-Resolved Magnetic Field Effects in the Recombination Fluorescence
- Effect of Dehydrated Trehalose Matrix on the Kinetics of Forward Electron Transfer Reactions in Photosystem I
- Photo-CIDNP in the Reaction Center of the Diatom Cyclotella meneghiniana Observed by 13C MAS NMR
- Light-Stimulated Generation of Free Radicals by Quinones-Chelators
- Influence of C2-Methylation of Imidazolium Based Ionic Liquids on Photoinduced Spin Dynamics of the Dissolved ZnTPP Studied by Time-Resolved EPR
- ESR Study of Electron States in Ge/Si Heterostructures with Nanodisc Shaped Quantum Dots
- Novel Anthrathiophene-Based Small Molecules as Donor Material for Organic Photovoltaics: Synthesis and Light-Induced EPR Study
- Structural Determination of a DNA Oligomer for a Molecular Spin Qubit Lloyd Model of Quantum Computers
Articles in the same Issue
- Frontmatter
- Preface
- Editorial Review
- From Free Radicals and Spin-Chemistry Over Spin-Dynamics and Hyperpolarization to Biology and Materials Science
- On Relations Between Singlet and Triplet Recombination Yields for Singlet and Triplet Precursors
- The Quantum Dynamical Basis of a Classical Kinetic Scheme Describing Coherent and Incoherent Regimes of Radical Pair Recombination
- Reaction Operators for Radical Pairs. The Exactly Solvable Model
- Estimation of the Fraction of Spin-Correlated Radical Ion Pairs in Irradiated Alkanes using Magnetosensitive Recombination Luminescence from Exciplexes Generated upon Recombination of a Probe Pair
- Theoretical Description of Pulsed RYDMR: Refocusing Zero-Quantum and Single Quantum Coherences
- A Transient EPR Study of Electron Transfer in Tetrathiafulvalene-Aluminum(III) Porphyrin-Anthraquinone Supramolecular Triads
- Solvent Radical Anions in Irradiated Aliphatic Ketones and Esters as Observed Using Time-Resolved Magnetic Field Effects in the Recombination Fluorescence
- Effect of Dehydrated Trehalose Matrix on the Kinetics of Forward Electron Transfer Reactions in Photosystem I
- Photo-CIDNP in the Reaction Center of the Diatom Cyclotella meneghiniana Observed by 13C MAS NMR
- Light-Stimulated Generation of Free Radicals by Quinones-Chelators
- Influence of C2-Methylation of Imidazolium Based Ionic Liquids on Photoinduced Spin Dynamics of the Dissolved ZnTPP Studied by Time-Resolved EPR
- ESR Study of Electron States in Ge/Si Heterostructures with Nanodisc Shaped Quantum Dots
- Novel Anthrathiophene-Based Small Molecules as Donor Material for Organic Photovoltaics: Synthesis and Light-Induced EPR Study
- Structural Determination of a DNA Oligomer for a Molecular Spin Qubit Lloyd Model of Quantum Computers
