𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Kinetics of the gas-phase reaction CH3F + I2 ⇆ CH2FI + HI: The CH bond dissociation energy in methyl and methylene fluorides

✍ Scribed by J. M. Pickard; A. S. Rodgers

Publisher
John Wiley and Sons
Year
1983
Tongue
English
Weight
374 KB
Volume
15
Category
Article
ISSN
0538-8066

No coin nor oath required. For personal study only.

✦ Synopsis

The kinetics of the gas-phase reaction of CH3F with 12 have been studied spectrophotometrically from 629 to 710 K, and were determined to be consistent with the following mechanism:

(KIJ

squares analysis of the kinetic data taken in the initial stages of reaction resulted in log k4 (M-w) = (11.3 f 0.1) -(30.8 f 0.2)ie where 8 = 4.5757'/1000 kcal/mol. The errors represent one standard deviation. The experimental activation energy E4 = 30.8 f 0.2 kcal/mol was combined with the assumption E3 = 1 f 1 kcal/mol and estimated heat capacities to obtain AH;(4, g, 298 K) = 30.0 f 1 kcal/mol

The enthalpy change at 298 K was combined with selected thermochemical data to derive DH"(CH2F-H) = 101.2 f 1 kcal/mol

📜 SIMILAR VOLUMES

Kinetics of OH reactions with N2H4, CH3N
Kinetics of OH reactions with N2H4, CH3NHNH2 and (CH3)2NNH2 in the gas phase
✍ Ghanshyam L. Vaghjiani 📂 Article 📅 2001 🏛 John Wiley and Sons 🌐 English ⚖ 149 KB

## Abstract The gas phase reaction kinetics of OH with three di‐amine rocket fuels—N~2~H~4~, CH~3~NHNH~2~, and (CH~3~)~2~NNH~2~—was studied in a discharge flow tube apparatus and a pulsed photolysis reactor under pseudo‐first‐order conditions in [OH]. Direct laser‐induced fluorescence monitoring of

Kinetics of the gas-phase reactions of c
Kinetics of the gas-phase reactions of chlorine atoms with CH2F2, CH3CCl3, and CF3CFH2 over the temperature range 253–553 K
✍ E. J. K. Nilsson; M. S. Johnson; O. J. Nielsen; E. W. Kaiser; T. J. Wallington 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 133 KB 👁 1 views

## Abstract Relative rate techniques were used to study the title reactions in 930–1200 mbar of N~2~ diluent. The reaction rate coefficients measured in the present work are summarized by the expressions __k__(Cl + CH~2~F~2~) = 1.19 × 10^−17^ __T__^2^ exp(−1023/T) cm^3^ molecule^−1^ s^−1^ (253–553

The gas-phase kinetics of the reaction o
The gas-phase kinetics of the reaction of 1,1,1-trifluoroethyl iodine with HI: The CI bond dissocation energy in 2,2,2-trifluoroethyl iodide
✍ E-Chung Wu; A. S. Rodgers 📂 Article 📅 1973 🏛 John Wiley and Sons 🌐 English ⚖ 248 KB

The kinetics of the gas-phase reaction of 2,2,2-trifluoroethyl iodide with hydrogen iodide has been studied over the temperature range of 525'K to 602°K and a tenfold variation in the ratio of CF3CHtI/HI. The experimental results are in good agreement with the expected free radical-mechanism: An an

The gas-phase kinetics of the reaction o
The gas-phase kinetics of the reaction of 1,1-difluoroiodoethane with hydrogen iodide: The C–I bond dissociation energy in 1,1-difluoroiodoethane
✍ J. M. Pickard; A. S. Rodgers 📂 Article 📅 1976 🏛 John Wiley and Sons 🌐 English ⚖ 253 KB

## Abstract The kinetics of gas‐phase reaction of CH~3~CF~2~I with HI were studied from 496 to 549K and have been shown to be consistent with the following mechanism: equation image A least squares treatment of the data gave where θ = 2.303 __RT__ kcal/mole. The observed activation energy __E__