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Issue 3, 1988
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A study of the ground electronic states of the isoelectronic ions PF+ and NCI+ by vacuum ultraviolet photoelectron spectroscopy

Abstract

NCI(a1Δ), prepared from the CI + N3 reaction, and PF(X3Σ), prepared as a secondary product of the F + PH3 reaction, have been investigated with vacuum ultraviolet photoelectron spectroscopy. The adiabatic ionization energy for the process NCI+(X2Π)â†� NCI(a1Δ) was measured as 9.69 ± 0.02 eV and this has led to a determination of the first adiabatic ionization energy of NCI(X3Σ) of 10.84 ± 0.02 eV. The first adiabatic ionization energy of PF(X3Σ) was measured as 9.60 ± 0.01 eV. Spectroscopic constants, [small omega, Greek, macron]e and re, in the ground 2Π state of the ions were determined as 1160 ± 30 cm–1 and 1.489 ± 0.005 Å for NCI+ and 1030 ± 30 cm–1 and 1.498 ± 0.005 Å for PF+, respectively. Assignments of the observed photoelectron bands have been supported by ab initio SCF-CI molecular-orbital calculations.

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Article type: Paper
DOI: 10.1039/F29888400299
Citation: J. Chem. Soc., Faraday Trans. 2, 1988,84, 299-310
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    A study of the ground electronic states of the isoelectronic ions PF+ and NCI+ by vacuum ultraviolet photoelectron spectroscopy

    V. Butcher, J. M. Dyke, A. E. Lewis, A. Morris and A. Ridha, J. Chem. Soc., Faraday Trans. 2, 1988, 84, 299
    DOI: 10.1039/F29888400299

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