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Dissociation energy of the benzenewater van der Waals complex

Cheng, B.-M. ; Grover, J.R. ; Walters, E.A.

Chemical physics letters, 1995-01, Vol.232 (4), p.364-369 [Periódico revisado por pares]

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Título:
Dissociation energy of the benzenewater van der Waals complex
Autor: Cheng, B.-M. ; Grover, J.R. ; Walters, E.A.
É parte de: Chemical physics letters, 1995-01, Vol.232 (4), p.364-369
Descrição: The dissociation energy of the complex C 6H 6·H 2O was determined by the threshold difference method. These complexes were produced in molecular beams via the expansion of a mixture of helium, and benzene and water vapours in the ratio of 96:3:1. The method requires the ionization potential of C 6H 6 and the appearance potential of C 6H + 6 from C 6H 6·H 2O, the difference between which is the dissociation energy. The necessary values are 9.246 and 9.344 ± 0.012 eV, respectively, from which D(C 6H 6·H 2O) = 0.098 ± 0.012 eV = 2.25 ± 2.25 ± 0.28 kcal mol −1. The ionization potential of C 6H 6·H 2O is 9.170 ± 0.014 eV, which leads to the dissociation energy of the complex ion of D([C 6H 6·H 2O] +) = 4.0 ± 0.4 kcal mol −1.
Editor: Elsevier B.V
Idioma: Inglês

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