The high resolution vacuum ultraviolet photoabsorption spectrum of ethyl bromide has been recorded between 5 and 10.15 eV (248-122 nm) using synchrotron radiation. It exhibits a broad structureless valence band centred at 6.1 eV of low cross section followed by a region dominated by excitation of Rydberg states. A high resolution photoelectron spectrum (PES) of the lowest energy ionization band has been obtained and provides ionization energies necessary for identification of related Rydberg-excited states. Also, analysis of the vibrational fine structure in the PES has allowed identification of the normal vibrational modes excited and their wave numbers in the ion. These data, in turn, have been used in the assignment of the lowest energy photoabsorption bands arising from electron excitation into the 5s Rydberg orbital. The electron energy loss spectrum, recorded from 6.5 to 14.1 eV, under electric-dipole conditions, confirms the magnitude of the photoabsorption cross-section values obtained using the synchrotron radiation and extends the differential and optical oscillator strength values up to 14.004 eV. (C) 2000 American Institute of Physics. [S0021-9606(00)01814-6].
Suto Kunihiro, Sato Yoshihiro, Reed Claire L., Skorokhodov Vladimir, Matsumi Yutaka, Kawasaki Masahiro, Ion Fragment Imaging of the Ion-Pair Photodissociation of CH3Cl, CH3Br, C2H5Cl, and C2H5Br at 118 nm, 10.1021/jp962883f
LEHRER E., WAGENBACH D., PLATT U., Aerosol chemical composition during tropospheric ozone depletion at Ny Alesund/Svalbard, 10.1034/j.1600-0889.49.issue5.5.x
Chiorbolo C., Gazz. Chim. Ital., 126, 685 (1996)
Brewer P., Appl. Phys. Lett., 45, 477 (1985)
Price W. C., The Far Ultraviolet Absorption Spectra and Ionization Potentials of the Alkyl Halides. Part II, 10.1063/1.1749904
Scheibe G., Z. Phys. Chem. Abt. B, 20, 283 (1933)
Porret D., Goodeve C. F., The Continuous Absorption Spectra of Alkyl Iodides and Alkyl Bromides and their Quantal Interpretation, 10.1098/rspa.1938.0042
Mulliken Robert S., Intensities in Molecular Electronic Spectra X. Calculations on Mixed‐Halogen, Hydrogen Halide, Alkyl Halide, and Hydroxyl Spectra, 10.1063/1.1750671
Astoin N., J. Phys., 19, 507 (1958)
Person James C., Nicole Paul P., Isotope Effects in the Photoionization Yields and in the Absorption Cross Sections for Methanol, Ethanol, Methyl Bromide, and Ethyl Bromide, 10.1063/1.1676590
Kimura Katsumi, Nagakura Saburo, n → σ* Absorption spectra of saturated organic compounds containing bromine and iodine, 10.1016/0371-1951(61)80062-3
Baker N.L., Russell B.R., The first s-Rydberg transitions of ethyl bromide and ethyl iodide as related to the corresponding methyl halides, 10.1016/0022-2852(78)90060-7
Felps W. S., Scott J. D., Findley G. L., McGlynn S. P., Molecular Rydberg transitions. XX. Vibronic doubling in alkyl bromides, 10.1063/1.441735
Delwiche J., Natalis P., Momigny J., Collin J.E., On the photoelectron spectra of HBr and DBr, 10.1016/0368-2048(72)85012-6
Motte-Tollet F, Delwiche J, Heinesch J, Hubin-Franskin M.-J, Gingell J.M, Jones N.C, Mason N.J, Marston G, On the high-resolution HeI photoelectron spectrum of Cl2O, 10.1016/s0009-2614(97)01407-3
van Cittert P. H., Zum Einfluß der Spaltbreite auf die Intensitätsverteilung in Spektrallinien. II, 10.1007/bf01391351
Allen John D., Grimm Frederick A., High-resolution photoelectron spectroscopy through deconvolution, 10.1016/0009-2614(79)80371-1
Palmer Michael H., Walker Isobel C., Guest Martyn F., Siggel Michele R.F., The electronic states of the azines. VII. 1,2,4-triazine, studied by photon absorption, near-threshold electron energy loss spectroscopy and ab initio multi-reference configuration interaction calculations, 10.1016/0301-0104(95)00308-8
Gingell J.M., Mason N.J., Zhao H., Walker I.C., Siggel M.R.F., VUV optical-absorption and electron-energy-loss spectroscopy of formamide, 10.1016/s0301-0104(97)00137-7
Furlan M., Hubin‐Franskin M‐J., Delwiche J., Roy D., Collin J. E., High resolution electron energy loss spectroscopy of NH3in the 5.5–11 eV energy range, 10.1063/1.448413
Motte‐Tollet F., Hubin‐Franskin M.‐J., Collin J. E., Vibrational excitation of methylamine by electron impact in the 4.5–30 eV energy range, 10.1063/1.463503
Motte-Tollet F., Heinesch J., Gingell J. M., Mason N. J., Vibrational excitation of methane by 15 and 30 eV intermediate-energy electron impact, 10.1063/1.473263
Huebner Russell H., Celotta R. J., Mielczarek S. R., Kuyatt C. E., Electron energy loss spectroscopy of acetone vapor, 10.1063/1.1679894
Gaufrès R., Béjaud-Bianchi M., Spectres de vibration et analyse vibrationnelle de bromures d'éthyle (normal et deuteries), 10.1016/0584-8539(71)80123-x
Giuliani A., Motte-Tollet F., Delwiche J., Heinesch J., Mason N. J., Gingell J. M., Walker I. C., Jones N. C., Hubin-Franskin M.-J., Electronic excitation and oscillator strength of ethyl iodide by VUV photoabsorption and electron energy loss spectroscopy, 10.1063/1.478964
Hashmall Joseph A., Heilbronner Edgar, n-Ionization Potentials of Alkyl Bromides, 10.1002/anie.197003051
Brogli F., Heilbronner E., The Competition between Spin Orbit Coupling and Conjugation in Alkyl Halides and its Repercussion on their Photoelectron Spectra, 10.1002/hlca.19710540523
Kimura Katsumi, Katsumata Shunji, Achiba Yohji, Matsumoto Hiroshi, Nagakura Saburo, Photoelectron Spectra and Orbital Structures of Higher Alkyl Chlorides, Bromides, and Iodides, 10.1246/bcsj.46.373
Karlsson Leif, Jadrny Reinhard, Mattsson Lars, Chau Foo Tim, Siegbahn Kai, Vibrational and Vibronic Structure in the Valence Electron Spectra of CH3X Molecules (X=F, Cl, Br, I, OH), 10.1088/0031-8949/16/5-6/010
Novak I., Klasinc L., Kovač B., McGlynn S.P., Electronic structure of haloalkanes: a high resolution photoelectron spectroscopic study, 10.1016/0022-2860(93)80193-y
Gedanken Aharon, Rowe Michael D., Magnetic circular dichroism spectra of the methyl halides. Resolution of the n → σ* continuum, 10.1016/0009-2614(75)80196-5
Gedanken Aharon, The magnetic circular dichroism of the A band in CF3I, C2H5I and t-BuI, 10.1016/0009-2614(87)80234-8
Bouguerne A, Hubin-Franksin M J, Furlan M, Valence and Rydberg states of ethyl iodide by electron energy loss spectroscopy, 10.1088/0953-4075/27/1/021
Lindholm E., Ark. Fys., 10, 125 (1969)
Bibliographic reference
Giuliani, A ; Motte-Tollet, F ; Delwiche, J ; Mason, NJ ; Jones, NC ; et. al. Electronic excitation and oscillator strength of ethyl bromide by vacuum ultraviolet photoabsorption and electron energy loss spectroscopy. In: Journal of Chemical Physics, Vol. 112, no. 14, p. 6285-6292 (2000)