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Open Access Reaction Rate Maxima at Large Distances between Reactants

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One commonly thinks that two reactants need to come very close to one another in order for a chemical reaction to occur. This is true for most reaction types, but electron transfer is an exception in this regard. It is a well-documented fact that electron transfers can occur over long distances (≥15 Å), but it is much less well-known that theory predicts a regime in which electron transfer rates in crease with increasing distance between reactants. This contribution explains the physical origin of this counter-intuitive behavior, and it identifies a set of conditions that might facilitate its experimental observation.

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Keywords: CHARGE SEPARATION; ELECTRON TRANSFER; ELECTRONIC COUPLING; MARCUS THEORY; REORGANIZATION ENERGY

Document Type: Research Article

Affiliations: 1: Department of Chemistry University of Basel St. Johanns-Ring 19 CH-4056 Basel, Switzerland 2: Department of Chemistry University of Basel St. Johanns-Ring 19 CH-4056 Basel, Switzerland. [email protected]

Publication date: March 1, 2016

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  • International Journal for Chemistry and Official Membership Journal of the Swiss Chemical Society (SCS) and its Divisions

    CHIMIA, a scientific journal for chemistry in the broadest sense, is published 10 times a year and covers the interests of a wide and diverse readership. Contributions from all fields of chemistry and related areas are considered for publication in the form of Review Articles and Notes. A characteristic feature of CHIMIA are the thematic issues, each devoted to an area of great current significance.

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