Active Nitrogen and N2+ (X') Ions


IN a recent paper1 I put forward the hypothesis that active nitrogen is simply the positive ions of the nitrogen molecule, N2 + (X') produced in the discharge tube. It was suggested that the excitation of the First Positive Bands—the characteristic active nitrogen spectrum—is due to the neutralization of N2+ by a three-body collision, with the neutral N2 molecule as the third body, in the volume rather than on the surface of the discharge vessel.

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  1. 1

    Mitra, Science and Culture, 9, 49 (1943–44).

  2. 2

    Constantinides, P. A., Phys. Rev., 30, 96 (1927).

  3. 3

    Rayleigh, Proc. Roy. Soc., A, 180, 146 (1942). See also, 86, 61 (1911) and 87, 183 (1912).

  4. 4

    Rayleigh, Proc. Roy. Soc., A, 176, 17, 22 (1940).

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MITRA, S. Active Nitrogen and N2+ (X') Ions. Nature 154, 212–213 (1944) doi:10.1038/154212a0

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