TCB Publications - Abstract

Klaus Schulten. Magnetic field effects in chemistry and biology. In J. Treusch, editor, Festkörperprobleme, volume 22, pp. 61-83. Vieweg, Braunschweig, 1982.

SCHU82 Chemical and biological photoprocesses which involve bimolecular reactions between non-zero spin intermediates, e.g. doublet molecules $^2A$ + $^2B$, often produce the intermediate molecular pair in a pure overall spin state, e.g. a singlet state $^1(^2A + ^2B)$, and select for the reaction channels again such spin states, e.g. a triplet state $^3(^2A +^2B)$. The necessary transition $^1(^2A + ^2B)$$\rightarrow$$^3(^2A +^2B)$ is affected by magnetic interactions (hyperfine, Zeeman, zero field splitting) and can be influenced by magnetic fields. Examples are photoinduced electron transfer processes, e.g. the primary reaction of photosynthesis.

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