Reaction of NH[sub 2] with O

Journal Article · Thu Jun 02 00:00:00 EDT 1994 · Journal of Physical Chemistry; (United States)

DOI:https://doi.org/10.1021/j100073a016· OSTI ID:7178361

Adamson, J D; Farhat, S K; Morter, C L; Glass, G P; Curl, R F ^[1]; Phillips, L F ^[2]

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1. Rice Univ., Houston, TX (United States)
2. Univ. of Canterbury, Christchurch (New Zealand)

The reaction between atomic oxygen and the amidogen radical, NH[sub 2], has been studied at 295 K by infrared kinetic spectroscopy. The NH[sub 2] radical was produced by excimer laser photolysis of NH[sub 3] at 193 nm and reacted with O atoms produced by a microwave discharge of dilute O[sub 2]/He mixtures. IR transient absorptions of NH[sub 2], and of NH and OH radicals formed as reaction intermediates, were monitored using a tunable infrared color-center laser. The room-temperature rate constant for the overall reaction was measured as (6.5 [+-] 1.3) x 10[sup [minus]11] cm[sup 3] molecule[sup [minus]1] s[sup [minus]1]. The minor channel leading to NH + OH was observed but accounted for at most about 8% of the NH[sub 2] reacting. The rate constant for the reaction NH + O was determined from fitting the NH time profile to be (6.6 [+-] 1.5) x 10[sup [minus]11] cm[sup 3] molecule[sup [minus]1] s[sup [minus]1]. 24 refs., 5 figs., 1 tab.

• OSTI ID: 7178361
• Journal Information: Journal of Physical Chemistry; (United States), Journal Name: Journal of Physical Chemistry; (United States) Vol. 98:22; ISSN JPCHAX; ISSN 0022-3654
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102 -- Chemical & Spectral Procedures
400201* -- Chemical & Physicochemical Properties
400500 -- Photochemistry
AMMONIA
CHEMICAL REACTIONS
DECOMPOSITION
ELEMENTS
EXCIMER LASERS
FLUIDS
GAS LASERS
GASES
HELIUM
HYDRIDES
HYDROGEN COMPOUNDS
INFRARED SPECTRA
KINETICS
LASERS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NONMETALS
OXYGEN
PHOTOCHEMICAL REACTIONS
PHOTOLYSIS
RADICALS
RARE GASES
REACTION KINETICS
SPECTRA