Magnetic Field Effect on the Quantum Yield of the Chain Reaction of Sulfo Group Photosubstitution for Bromine in 1-Bromo-2-Hydroxynaphthalene

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It has been shown that the quantum yield of the photochemical reaction of bromine replacement by the sulfo group in 1-bromo-2-hydroxynaphthalene decreases with an increase in the magnetic flux density. The participation of the triplet radical ion pair in the initiation of the chain photosubstitution reaction was directly confirmed. The lifetime of the radical ion pair was estimated.

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