A photoelectron spectroscopic study of the second ionisation of the CF(X²?) radical
A photoelectron spectroscopic study of the second ionisation of the CF(X²?) radical
The CF(X²?) radical has been re-investigated with vacuum ultraviolet photoelectron spectroscopy. Two bands were observed and assigned to the ionisations CF+(X(1)? (+)?CF(X(2)?) and CF+(a(3)?)?CF(X(2)?). The first band, which has been observed previously, has an adiabatic ionisation energy of (9.11 +/-0.02) eV and a vertical ionisation energy of (9.55 +/-0.02) eV. For the second band, three vibrational components were observed with the first, the most intense, at an ionisation energy of (13.94 +/-0.02) eV. Analysis of the vibrational structure in the two observed bands allowed omega (c) and re to be determined as 1810 +/- 30 cm(-1) and 1.154 +/-0.005 Å, respectively for the first ionic state, CF+(X(1)Sigma (-)), and 1614 +/- 30 cm(-1) and 1.213 +/-0.005 Å, respectively for the second ionic state, CF+(a(3)?). Comparison of the ionisation energies and spectroscopic constants obtained has been made with values obtained from recent multi-reference configuration interaction calculations.
cf radicals, photoelectron spectroscopy, ionisation energy, ionic states, diode-laser spectroscopy, electronic states, carbon monofluoride, cf+, information, energy, ions
49-56
Dyke, J.M.
46393b45-6694-46f3-af20-d7369d26199f
Hooper, N.
ea5d763b-aea5-4deb-919c-e810f3dca647
Morris, A.
378f6b9c-92e7-4783-b7be-cafca74b5372
2001
Dyke, J.M.
46393b45-6694-46f3-af20-d7369d26199f
Hooper, N.
ea5d763b-aea5-4deb-919c-e810f3dca647
Morris, A.
378f6b9c-92e7-4783-b7be-cafca74b5372
Dyke, J.M., Hooper, N. and Morris, A.
(2001)
A photoelectron spectroscopic study of the second ionisation of the CF(X²?) radical.
Journal of Electron Spectroscopy and Related Phenomena, 119 (1), .
(doi:10.1016/S0368-2048(01)00233-X).
Abstract
The CF(X²?) radical has been re-investigated with vacuum ultraviolet photoelectron spectroscopy. Two bands were observed and assigned to the ionisations CF+(X(1)? (+)?CF(X(2)?) and CF+(a(3)?)?CF(X(2)?). The first band, which has been observed previously, has an adiabatic ionisation energy of (9.11 +/-0.02) eV and a vertical ionisation energy of (9.55 +/-0.02) eV. For the second band, three vibrational components were observed with the first, the most intense, at an ionisation energy of (13.94 +/-0.02) eV. Analysis of the vibrational structure in the two observed bands allowed omega (c) and re to be determined as 1810 +/- 30 cm(-1) and 1.154 +/-0.005 Å, respectively for the first ionic state, CF+(X(1)Sigma (-)), and 1614 +/- 30 cm(-1) and 1.213 +/-0.005 Å, respectively for the second ionic state, CF+(a(3)?). Comparison of the ionisation energies and spectroscopic constants obtained has been made with values obtained from recent multi-reference configuration interaction calculations.
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Published date: 2001
Keywords:
cf radicals, photoelectron spectroscopy, ionisation energy, ionic states, diode-laser spectroscopy, electronic states, carbon monofluoride, cf+, information, energy, ions
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Local EPrints ID: 19470
URI: http://eprints.soton.ac.uk/id/eprint/19470
PURE UUID: 26ca7e9a-4f67-4f1c-9fe9-07541e6e9d9a
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Date deposited: 15 Feb 2006
Last modified: 16 Mar 2024 02:36
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Author:
N. Hooper
Author:
A. Morris
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