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Theory of multiquantum optically detected ESR spectra of radical pairs. I. General theory. Resonances in parallel radio-frequency field

1991; Elsevier BV; Volume: 153; Issue: 3 Linguagem: Inglês

10.1016/0301-0104(91)80047-l

1873-4421

Vitaly Morozov, A.B. Doktorov,

Spectroscopy and Quantum Chemical Studies

A general theory of multiquantum optically detected ESR spectra of radical pairs has been developed neglecting the processes of internal spin relaxation. The theory has been used to calculate multiquantum resonances in radiofrequency field which is parallel to the Zeeman field. The position and form of spectral components at arbitrary values of nuclear partner spins have been studied assuming a Poisson life-time-distribution of radical pairs. A physical interpretation of the results obtained has been proposed. The position of the spectral lines of a resolved spectrum for a complex nuclear structure of radical pair partners has been established.