Abstract
Photodissociation spectra of the molecular ion CH3I+ were obtained with a three stage quadrupole mass spectrometer. Starting from the\(\tilde X^2 E_{3/2} \) ground state, theà 2 E 1/2 state was excited with a stilbene 3 cw dye laser. This state predissociates to CH 3+ +I. Measuring the intensity of the CH 3+ fragment ions as a function of the wavelength of the exciting laser, a spectrum showing vibrational and rotational structure was obtained. The vibrational structure was assigned to three progressions ofv 3 and new vibrational frequencies were determined. From a computer simulation of the (0, 1, 10) band rotational constants were derived. In particular, their dependence on the vibrationv 3 was studied.
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Moseley, J.P.: In: Photoionization and photodissociation. Lawley, K.P.Z. (ed.). New York: John Whiley 1985
Dunbar, R.C.: In: Gas phase ion chemistry. Bowers, M.T. (ed.), Vol. 2, pp. 181–220. New York: Academic Press 1979
McGilvery, D.C., Morrison, J.D.: J. Chem. Phys.67, 368 (1977)
Goss, S.P., Morrison, J.D., Smith, D.L.: J. Chem. Phys.75, 757 (1981)
Goss, S.P., McGilvery, D.C., Morrison, J.D., Smith, D.L.: J. Chem. Phys.75(4), 1820 (1981)
McGilvery, D.C., Morrison, J.D.: Int. J. Mass Spectrosc. Ion Phys.70, 28, 81 (1978)
Morrison, J.D., McGilvery, D.C., Smith, D.L.: J. Chem. Phys.70, 4761 (1979)
Tadjeddine, M., Bouchoux, G., Malegaz, L., Durup, J., Pernot, C., Weiner, J.: Chem. Phys.69, 229 (1982)
Weinkauf, R., Walter, K., Boesl, U., Schlag, E.W.: Chem. Phys. Lett.141, 267 (1987)
Herzberg, G.: J. R. Astron. Soc. Can.82 (3) (1988)
McLoughlin, R.G., Morrison, J.D., Smith, D.L., Wahrhaftig, A.L.: J. Chem. Phys.82, 1237 (1985)
Turner, D.W., Baker, C., Baker, A.D., Brundle, C.R.: In: Molecular photoelectron spectroscopy. New York: Wiley Intersience 1970
Siegbahn, K.: In: Molecular spectroscopy. West, A.R. (ed.), p. 227. London: Heyden, Institute of Petroleum 1977
Herzberg, G.: In: Molecular spectra and molecular structure. I. Spectra of diatomic molecules. New York: Van Nostrand Resinhold 1950
Herzberg, G.: In: Molecular spectra and molecular structure. III. Electronic spectr and electronic structure of polyatomic molecules. New York: Van Nostrand Reinhold 1967
Chupka, W.A., Colon, S.D., Seaver, M.S., Woodward, A.M.: Chem. Phys. Lett.95(3), 171 (1983)
Karlsson, L., Jadrny, R., Mattson, L., Chau, F.T., Siegbahan, K.: Phys. Scr.16, 258 (1977)
Ragle, J.L., Stenhouse, I.A., Frost, D.C., McDowell, C.A.: J. Chem. Phys.53, 178 (1970)
Willett, G.D., Peel, J.B.: (unpublished paper)
Baer, T., Tsai, B.P.: J. Electron. Spectrosc. Relat. Phenom.2, 25 (1973)
Jones, E.W., Thompson, J.W.: Proc. R. Soc. London Ser. A228, 50 (1965)
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On leave from Fudan University, Shanghai, Peoples's Republic of China
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Lingbing, C., Figger, H. & Quint, W. High resolution photofragment spectroscopy of the gas phase methyl iodide ion. Z Phys D - Atoms, Molecules and Clusters 13, 61–67 (1989). https://doi.org/10.1007/BF01437344
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DOI: https://doi.org/10.1007/BF01437344