Abstract
HERZBERG and Sponer1 have recently reported that the A(3) level of N2 lies 6.14 volts above the X (ground) level. They have assumed in deriving this value that Kaplan's new band system2 is indeed the intercombination A – X. For this hypothesis the spacing of Kaplan's upper vibrational levels affords some support. On the other hand, direct estimates of the position of this level by the method of electron collision, including Sponer's3 original determination, agree in placing it at least two volts higher than the above value.
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References
Herzberg and Sponer, Z. Phys. Chem., B, 26, 1; 1934.
Kaplan, Phys. Rev., 45, 675; 1934. Kaplan, Phys. Rev., 45, 898; 1934.
Sponer, Z. Phys., 34, 622; 1925.
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APPLEYARD, E., THOMPSON, N. & WILLIAMS, S. Situation of the A (3) Level in the Nitrogen Molecule. Nature 134, 322–323 (1934). https://doi.org/10.1038/134322c0
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DOI: https://doi.org/10.1038/134322c0
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