Kinetic isotope effects in the reaction of fluorine atoms with molecular hydrogen. II. the F + HD/DH intramolecular isotope effect

Avigdor Persky

doi:10.1063/1.1679909

Kinetic isotope effects in the reaction of fluorine atoms with molecular hydrogen. II. the F + HD/DH intramolecular isotope effect

Avigdor Persky

Weizmann Institute of Science

Research output: Contribution to journal › Article › peer-review

47 Scopus citations

Abstract

The intramolecular kinetic isotope effect in the reaction of fluorine atoms with HD molecules, F + HD→k_F+ HDHF + D, F + DH→k _F+DH DF + H, was measured as function of reaction temperature in the range of 159-413 °K. The measured isotope effect can be expressed as an Arrhenius-type equation: k_F + HD/k_F+DH = (l.26± 0. 02) exp[(70±6)/RT], Experiments were carried out in a fast flow system with direct mass spectrometric analysis of reaction products. The experimental results for K_F+HD/K_F+DH, as well as results for KF + H₂/K_F+D, which were reported in an earlier publication, are compared with calculations based on transition state theory, using empirical and seraiempirical models.

Original language	English
Pages (from-to)	5578-5584
Number of pages	7
Journal	Journal of Chemical Physics
Volume	59
Issue number	10
DOIs	https://doi.org/10.1063/1.1679909
State	Published - 1973
Externally published	Yes

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title = "Kinetic isotope effects in the reaction of fluorine atoms with molecular hydrogen. II. the F + HD/DH intramolecular isotope effect",

abstract = "The intramolecular kinetic isotope effect in the reaction of fluorine atoms with HD molecules, F + HD→kF+ HDHF + D, F + DH→k F+DH DF + H, was measured as function of reaction temperature in the range of 159-413 °K. The measured isotope effect can be expressed as an Arrhenius-type equation: kF + HD/kF+DH = (l.26± 0. 02) exp[(70±6)/RT], Experiments were carried out in a fast flow system with direct mass spectrometric analysis of reaction products. The experimental results for KF+HD/KF+DH, as well as results for KF + H2/KF+D, which were reported in an earlier publication, are compared with calculations based on transition state theory, using empirical and seraiempirical models.",

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N2 - The intramolecular kinetic isotope effect in the reaction of fluorine atoms with HD molecules, F + HD→kF+ HDHF + D, F + DH→k F+DH DF + H, was measured as function of reaction temperature in the range of 159-413 °K. The measured isotope effect can be expressed as an Arrhenius-type equation: kF + HD/kF+DH = (l.26± 0. 02) exp[(70±6)/RT], Experiments were carried out in a fast flow system with direct mass spectrometric analysis of reaction products. The experimental results for KF+HD/KF+DH, as well as results for KF + H2/KF+D, which were reported in an earlier publication, are compared with calculations based on transition state theory, using empirical and seraiempirical models.

AB - The intramolecular kinetic isotope effect in the reaction of fluorine atoms with HD molecules, F + HD→kF+ HDHF + D, F + DH→k F+DH DF + H, was measured as function of reaction temperature in the range of 159-413 °K. The measured isotope effect can be expressed as an Arrhenius-type equation: kF + HD/kF+DH = (l.26± 0. 02) exp[(70±6)/RT], Experiments were carried out in a fast flow system with direct mass spectrometric analysis of reaction products. The experimental results for KF+HD/KF+DH, as well as results for KF + H2/KF+D, which were reported in an earlier publication, are compared with calculations based on transition state theory, using empirical and seraiempirical models.

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Kinetic isotope effects in the reaction of fluorine atoms with molecular hydrogen. II. the F + HD/DH intramolecular isotope effect

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