The kinetics of the reaction F + H2 → HF + H. A critical review of literature data

Published experimental studies concerning the determination of rate constants for the reaction F + H₂ → HF + H are reviewed critically and conclusions are presented as to the most accurate results available. Based on these results, the recommended Arrhenius expression for the temperature range 190–376 K is k = (1.1 ± 0.1) × 10^?10 exp |-(450 ± 50)/T| cm³ molecule^?1 s^?1, and the recommended value for the rate constant at 298 K is k = (2.43 ± 0.15) × 10^?11 cm³ molecule^?1 s^?1. The recommended Arrhenius expression for the reaction F + D₂ → DF + D, for the same temperature range, based on the recommended expression for k and accurate results for the kinetic isotope effect k/k is k = (1.06 ± 0.12) × 10^×10 exp |-(635 ± 55)/T|cm³ molecule^?1 s^?1, and the recommended value for 298 K is k = (1.25 ± 0.10) × 10^?11 cm³ molecule^?1 s^?1. © 1997 John Wiley & Sons, Inc. Int J Chem Kinet 29: 67–71, 1997.