Abstract
Johns and Barrow1 have recently reported the results of their ultra-violet spectroscopic studies of the DF+ and HF+ molecular ions. They concluded that the observed bands were due to transitions between a lower A-state and an upper B-state. The A-state was regarded as being the A 2Σ+-state arising from the combination H++F(2 P). Johns and Barrow state that if A 2Σ+ is the ground-state of the HF+ ion, then the ionization potential of HF would be 16.88 eV.
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References
Johns, J. W. C., and Barrow, R. F., Nature, 179, 374 (1957).
Fox, R. E., Hickam, W. M., Kjeldaas, jun., T., and Grove, D. J., Phys. Rev., 84, 859 (1951). Frost, D. C., and McDowell, C. A., Proc. Roy. Soc., A, 232, 227 (1955).
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COOPE, J., FROST, D. & McDOWELL, C. Ionization Potentials of Hydrogen Fluoride and the Ground-State of the HF+ Ion. Nature 179, 1186 (1957). https://doi.org/10.1038/1791186a0
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DOI: https://doi.org/10.1038/1791186a0
