EPR OF SPIN-CORRELATED RADICAL PAIRS - ANALYTICAL TREATMENT OF SELECTIVE EXCITATION INCLUDING ZERO-QUANTUM COHERENCE
We present a simple analytical treatment of the electron paramagnetic resonance (EPR) spectra of spin-correlated radical pairs, including the zero-quantum coherence with which they are created. We concentrate on the time dependence of the spectrum of a prototype radical pair, with exchange and dipol...
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| Format: | Journal article |
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1993
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| Summary: | We present a simple analytical treatment of the electron paramagnetic resonance (EPR) spectra of spin-correlated radical pairs, including the zero-quantum coherence with which they are created. We concentrate on the time dependence of the spectrum of a prototype radical pair, with exchange and dipolar couplings but no nuclei, in transient nutation experiments with a without a delay between the formation of the pair and the application of the microwave field. We show how the zero-quantum coherence manifests itself and suggest how it may be turned to advantage. An appendix describes the singlet-triplet interconversion of radical pairs in the language of product operators. © 1993. |
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