Research Papers in Physics and Astronomy


Date of this Version

May 1986


Published in the Journal of Vacuum Science and Technology A 4 (3), Mayidurn 1986. Copyright 1986 American Vacuum Society. Used by permission. For free online abstracts, see


The ionization potentials for CCl 4, CCl 3Br, CBr 2Cl 2, CBr 4, CCl 3, and CBr 3 have been measured using electron impact techniques. These numbers have been combined with previously published thermodynamic values in order to construct thermodynamic cycles for ionic and neutral decomposition of the bromochloromethanes. The n to σ*, n to s, and n to p electronic transition energies have also been determined on the basis of photoabsorption spectra.

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