Letter | Published:

Complexes of Amino-Acids with Oxygen

Naturevolume 193pages464465 (1962) | Download Citation



IT has been well established by Evans1–4 that oxygen will form contact charge transfer complexes with a wide variety of hydrocarbons. The formation of the complex is observed spectroscopically. It is seen that when oxygen is dissolved in solutions of hydrocarbons under very high pressure, a new broad absorption band appears to the long wavelength side of the first singlet absorption band of the hydrocarbon. In many cases there is superimposed on this broad band a structure which is the first triplet absorption spectrum. This has been used by Birks and Slifkin5 for measuring the first triplet-levels of the polycyclic aromatic hydrocarbons.

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  1. 1

    Evans, D. F., J. Chem. Soc., 1351 (1957).

  2. 2

    Evans, D. F., J. Chem. Soc., 3885 (1957).

  3. 3

    Evans, D. F., J. Chem. Soc., 1987 (1961).

  4. 4

    Evans, D. F., J. Chem. Soc., 2566 (1961).

  5. 5

    Birks, J. B., and Slifkin, M. A., Nature, 191, 761 (1961).

  6. 6

    Steele, R. H., and Szent-Györgyi, A., Proc. U.S. Nat. Acad. Sci., 43, 477 (1957).

  7. 7

    Teale, F. J. W., and Weber, G., Biochem. J., 65, 476 (1957).

  8. 8

    Friedel, R. A., and Orchin, M., Ultraviolet Spectra of Aromatic Compounds (John Wiley, New York, 1951).

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  1. Physical Laboratories, The University, Manchester, 13

    • M. A. SLIFKIN


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