𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Ab initio calculation of the heats of formation of CF3OH and CF2O

✍ Scribed by J.A. Montgomery Jr.; H.H. Michels; J.S. Francisco


Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
474 KB
Volume
220
Category
Article
ISSN
0009-2614

No coin nor oath required. For personal study only.

✦ Synopsis


The heats of formation of the trifluoromethanol (CFrOH) and carbonic difluoride (CFrO) molecules are calculated with theoretical methods of demonstrated high accuracy. The results are used to assess the accuracy of the reported value of the heat of formation of CF,O and to provide an accurate estimate for CFrOH. The implications of these results for atmospheric chemistry are discussed.


πŸ“œ SIMILAR VOLUMES


Ab-initio study of the energetics and th
✍ W.C. Kreye πŸ“‚ Article πŸ“… 1996 πŸ› Elsevier Science 🌐 English βš– 497 KB

Ab-initio computations at 298.15 K were made of the activation quantities AH\*, AS\*, and AG\* and of the reaction quantities AH r and AS r for is the transition state (TS). GAUSS-IAN92 was used and energies computed at a slightly modified Gaussian-2 level. Two potential surfaces for the TS had sym

Upper limits for the rate constants of t
✍ M. Matti Maricq; Joseph J. Szente πŸ“‚ Article πŸ“… 1993 πŸ› Elsevier Science 🌐 English βš– 673 KB

Flash photolysis/time-resolved UV absorption measurements of the rate constants for the title reactions are reported over the temperature range 2 lo-253 K. The photolysis of F2/CF,H/03/02/N, gas mixtures reveals that the formation of CF302 and CF,O radicals has no measurable effect on the ozone conc

Kinetic Study of OH Radical Reactions wi
✍ Dr. Pablo M. Cometto; Dr. RaΓΊl A. Taccone; Dr. Jorge D. Nieto; Dr. Pablo R. Dalm πŸ“‚ Article πŸ“… 2010 πŸ› John Wiley and Sons 🌐 English βš– 219 KB πŸ‘ 1 views

## Abstract The relative rate technique has been used to determine the rate constants of the reactions of OH radicals with CF~3~CClο£ΎCCl~2~ (__k__~1~), CF~3~CClο£ΎCClCF~3~ (__k__~2~) and CF~3~CFο£ΎCFCF~3~ (__k__~3~). Experiments were carried out at (298Β±2) K and atmospheric pressure using ultrapure nitr

Kinetic study of the reaction CF3O+O3β†’CF
✍ Timothy J. Wallington; Michael D. Hurley; William F. Schneider πŸ“‚ Article πŸ“… 1993 πŸ› Elsevier Science 🌐 English βš– 629 KB

A relative rate approach has , been used to measure the reactivity of CF,O radicals towards ozone. Using k(CFaO+NOa)=2,7x IO-" cm' molecule-' s-' as the referencereactioqanupperlimit ofk(CF,O+Os) 63~ 10-'4cmSmolecule-' was determined at 295 K and 700 Torr of O2 diluent. The implications for the atmo