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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
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
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), 49-56. (doi:10.1016/S0368-2048(01)00233-X).

Record type: Article

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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More information

Published date: 2001
Keywords: cf radicals, photoelectron spectroscopy, ionisation energy, ionic states, diode-laser spectroscopy, electronic states, carbon monofluoride, cf+, information, energy, ions

Identifiers

Local EPrints ID: 19470
URI: https://eprints.soton.ac.uk/id/eprint/19470
PURE UUID: 26ca7e9a-4f67-4f1c-9fe9-07541e6e9d9a
ORCID for J.M. Dyke: ORCID iD orcid.org/0000-0002-9808-303X

Catalogue record

Date deposited: 15 Feb 2006
Last modified: 06 Jun 2018 13:16

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