Role of HCO/sub 2/ radicals in the formation of vibrationally excited HCOOH molecules during the reaction of fluorine with formic acid

Journal Article · Thu Sep 01 04:00:00 EDT 1988 · Kinet. Catal. (Engl. Transl.); (United States)

OSTI ID:6083066

Fedotov, V G

The IR emission spectrum produced in the chemical reaction F/sub 2/+HCOOH+H/sub 2/ initiated by a short electrical discharge and in steady-state flame conditions are partial reagent pressures of 1-10 mm Hg was investigated. On the basis of a decrease in the HCOOH emission intensity on increasing the temperature or hydrogen concentration it was concluded that vibrationally excited formic acid molecules arise not as a result of V-V exchange, but from the reaction HCO/sub 2/ x +HCOOH..-->..MCOOH (nu/sub C/=O)+COOH, which competes with the decomposition reaction HCO/sub 2/..-->..H+CO/sub 2/. The emission band detected at 1620 cm/sup -1/ is tentatively ascribed to valence vibrations of the C-O bonds in the HCO/sub 2/ radical.

• Research Organization: Institute of Chemical Physics, Moscow (USSR)
• OSTI ID: 6083066
• Journal Information: Kinet. Catal. (Engl. Transl.); (United States), Journal Name: Kinet. Catal. (Engl. Transl.); (United States) Vol. 29:2; ISSN KICAA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400800* -- Combustion
Pyrolysis
& High-Temperature Chemistry
ACTIVATION ENERGY
CARBOXYLIC ACIDS
CHEMICAL BONDS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHEMICAL REACTORS
COMBUSTION
DECOMPOSITION
ELECTRIC DISCHARGES
ELEMENTS
EMISSION SPECTRA
ENERGY
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITATION
EXCITED STATES
FLAME PROPAGATION
FLAMES
FLUORINE
FORMIC ACID
HALOGENS
HYDROGEN
INFRARED SPECTRA
KINETICS
LUMINESCENCE
MONOCARBOXYLIC ACIDS
NONMETALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXIDATION
PYROLYSIS
RADICALS
REACTION KINETICS
SPECTRA
TEMPERATURE DEPENDENCE
THERMOCHEMICAL PROCESSES
THERMOLUMINESCENCE
VALENCE
VIBRATIONAL STATES