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Radical pairs (RPs) are important reaction intermediates generated whenever two radicals encounter one another, a bond is cleaved homolytically or electron transfer between non-radical species takes place. The concept of a radical pair as a reaction intermediate is introduced and developed through simple pictorial analogies, indicating how RP behaviour is governed by interplay of spin and spatial motion. Such analogies are then extended to describe the experimental consequences of RPs in magnetic resonance and magnetochemistry experiments, including reference to the relevance of RPs in biological systems. Finally experimental techniques by which RPs can be observed directly are introduced and described in the context of the developed models.
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Document Type: Research Article

Publication date: 01 September 2002

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  • Progress in Reaction Kinetics & Mechanism is an international journal for the quarterly publication of both in-depth reviews and research articles.

    In-depth reviews are comprehensive accounts bringing together work from many sources with the aim of providing an article of lasting value that will become established as the reference source in the particular subject. Research articles, on the other hand, normally focus on a relatively new or recently developed field or technique giving a state-of-the-art account of the subject and may well refer to a narrower range of existing work. It covers the fields of kinetics and mechanisms of chemical processes in the gas phase and solution of both simple and complex systems.

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