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Your search keyword '"Eland, J.H.D."' showing total 15 results
Start Over Author "Eland, J.H.D." Journal chemical physics letters
15 results on '"Eland, J.H.D."'

15. A curious regularity in the dissociative photoionization of fluorinated benzenes: why do <f>C6F6+</f> and <f>C6H6+</f> dissociate so differently?

Author

Kinugawa, T., Hodgekins, A.M., and Eland, J.H.D.

Subjects
*PHOTOIONIZATION, *BENZENE
Abstract

Photoelectron-photoion coincidence (PEPICO) spectra at 73.6 nm reveal an interesting fact; from hexafluorobenzene cation the C5F3+ fragment is most abundant whilst from the benzene cation C4H4+ is far more abundant than C5H3+. These contrasting results are connected, as shown by the PEPICO spectra of other fluorinated benzenes, by a regular change of the dominant fragment from C5F3+ to C4H4+ as the number of fluorine atoms decreases. This regularity is consistent with the appearance energies, at QCISD[T] or CBS-QB3 levels, of C5FmH3−m+ in the acetylene-cyclopropene structure and C4FnH4−n+ in the methylene-cyclopropene and/or the vinyl-acetylene structures. The energy-selected PEPICO data further support the theoretical results. [Copyright &y& Elsevier]

Published
2003
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