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Magnetic field effects in chemistry and biology

  • Klaus Schulten
Chapter
First Online:
Part of the Advances in Solid State Physics book series (ASSP, volume 22)

Abstract

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 necessery transition 1(2A+2B)→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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References

  1. [1]
    A. R. Lepley and G. L. Closs, Eds., ‘Chemically Induced Magnetic Polarization', John Wiley, (New York, 1973).Google Scholar
  2. [2]
    K. Schulten, H. Staerk, A. Weller, H.-J. Werner and B. Nickel, Z. Phys. Chem. NF 101, 37 (1976).Google Scholar
  3. [3]
    K. Schulten and P. G. Wolynes, J. Chem. Phys. 68, 3292 (1978); E.-W. Knapp and K. Schulten, J. Chem. Phys. 71, 1878 (1979).CrossRefADSGoogle Scholar
  4. [4]
    H.-J. Werner, H. Staerk and A. Weller, J. Chem. Phys. 68, 2419 (1978).CrossRefADSGoogle Scholar
  5. [5]
    H. W. Krüger, M. E. Michel-Beyerle and H. Seidlitz, Chem. Phys. Lett. 87, 72 (1982); F. Nolting, H. Staerk, and A. Weller, Chem. Phys. Lett. (in press).CrossRefADSGoogle Scholar
  6. [6]
    Actually, there is also a weak magnetic field dependence expected for random encounters, for details see Ref. 2Google Scholar
  7. [7]
    N. J. Turro and B. Kraeutler, J. Am. Chem. Soc. 100, 7432 (1978); N. J. Turro, B. Kraeutler, and D. R. Anderson, J. Am. Chem. Soc. 101, 7435 (1979); B. Kraeutler and N. J. Turro, Chem. Phys. Lett 70, 266, 270 (1980).CrossRefGoogle Scholar
  8. [8]
    H.-J. Werner, K. Schulten and A. Weller, Biochim. Biophys. Acta 502, 255 (1978).CrossRefGoogle Scholar
  9. [9]
    A. J. Hoff, R. Van Grondelle and L. N. M. Duysens, Biochim. Biophys. Acta 460, 547 (1977); for a most recent review see A. J. Hoff, Quart. Rev. Biophys. 14, 599 (1981).CrossRefGoogle Scholar
  10. [10]
    R. Haberkorn, M. E. Michel-Beyerle and R. Marcus, Proc. Natl. Acad. Sci. USA 76, 4185 (1979).CrossRefADSGoogle Scholar
  11. [11]
    H. Rademaker, A. J. Hoff, and L.N.M. Duysens, Biochim. Biophys. Acta 546, 248 (1979).CrossRefGoogle Scholar
  12. [12]
    K. Schulten, Ch.E. Swenberg and A. Weller, Z. Phys. Chem. NF 111, 1 (1978); as an example for the observation of magnetic orientation in migratory birds see W. Wiltschko and R. Wiltschko, Science 176, 62 (1972); the magnetic navigation in bacteria which appears to rely on a different mechanism has been reviewed in R.P. Blakemore and R.B. Frankel, Sci. Am. 245, 42 (1981).Google Scholar
  13. [13]
    Z. Schulten and K. Schulten, J. Chem. Phys. 66, 4676 (1977).CrossRefGoogle Scholar
  14. [14]
    H.-J. Werner, Z. Schulten, and K. Schulten, J. Chem. Phys. 67, 646 (1977).CrossRefADSGoogle Scholar
  15. [15]
    K. Schulten and I. Epstein, J. Chem. Phys. 71, 309 (1979); further developments of the Monte Carlo algorithms for diffusion processes can be found in G. Lamm and K. Schulten, J. Chem. Phys. 75, 365 (1981); ibid. (submitted for publication).CrossRefADSGoogle Scholar
  16. [16]
    R. Haberkorn and M.E. Michel-Beyerle, Biophys. J. 26, 489 (1979).CrossRefGoogle Scholar
  17. [17]
    C.E.D. Chidsey, M.G. Roelofs, and S.G. Boxer, Chem. Phys. Lett. 74, 113 (1980).CrossRefADSGoogle Scholar
  18. [18]
    J.P. Colpa, F. Steif, and D. Stehlik, Chem. Phys. 33, 79 (1978) and references therein.CrossRefGoogle Scholar
  19. [19]
    Recently, M. G. Roelofs, C.E.D. Chidsey, and S.G. Boxer, Chem. Phys. Lett. 87, 582 (1982) suggested also an important role of the fine structure interaction, i. e. the dipolar electron spin-spin interaction through space between 2Chl2 + and 2Ph−; this interaction has been accounted for by the authors in the framework of the theory outlined here and in [8].CrossRefADSGoogle Scholar

Copyright information

© Friedr. Vieweg & Sohn Verlagsgesellschaft mbH 1982

Authors and Affiliations

  • Klaus Schulten
    • 1
  1. 1.PhysikdepartmentTechnische Universität MünchenGarchingFederal Republic of Germany

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