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outer-sphere (electron transfer) definition
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An outer-sphere electron transfer is a reaction in which the electron transfer takes place with no or very weak (4 -16 kJ mol-1) electronic interaction between the reactants in the transition state. If instead the donor and the acceptor exhibit a strong electronic coupling, the reaction is described as inner-sphere electron transfer. The two terms derive from studies concerning metal complexes and it has been suggested that for organic reactions the term "nonbonded" and "bonded" electron transfer should be used. See also inner-sphere electron transfer. EBERSON (1987); LITTLER (19

See also:
Optical Yield definition
Optical Activity definition
outlet normal operating pressure definition
optic axis definition
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