F + HN/sub 2/ system: a chemical source for NF(a/sup 1/. delta. )

Journal Article · Thu Jan 15 04:00:00 EST 1987 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100286a039· OSTI ID:6874658

Habdas, J; Wategaonkar, S; Setser, D W

The secondary reaction in the F + HN/sub 3/ reaction system under conditions of excess (F) provides a good source of NF(a/sup 1/..delta..) in a flow reactor. Comparison of the NF(a) yield from the F/HN/sub 3/ system with the yield from the H/NF/sub 2/ system suggests that approx.>85% of the HN/sub 3/ can be converted to NF(a). The F + N/sub 3/ secondary reaction has a rate constant of (5 +/- 2) x 10/sup -11/ cm/sup 3/ molecule/sup -1/ s/sup -1/. The primary reaction yields HF(nu) with a distribution, P/sup 1/-P/sup 4/, of 36:36:22:06; the HF(nu greater than or equal to 1) formation rate constant is (8.5 +/- 0.9) x 10/sup -11/ cm/sup 3/ molecule/sup -1/ s/sup -1/. From the highest observed HF(nu,J) level, D/sub 0/(H-N/sub 3/) and ..delta..H/sub f//sup 0//sub 0/ (N/sub 3/) were assigned as greater than or equal to93 and greater than or equal to113 kcal mol/sup -1/, respectively. Qualitative observations suggest a bimolecular NF(a) self-removal rate constant or a HF quenching rate constant of approx.5 x 10/sup -13/ cm/sup 3/ molecule/sup -1/ s/sup -1/.

• Research Organization: Kansas State Univ., Manhattan
• OSTI ID: 6874658
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 91:2; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CHEMILUMINESCENCE
DATA
ELEMENTS
ENERGY LEVELS
EXCITED STATES
EXPERIMENTAL DATA
FLUIDS
FLUORINE
GASES
HALOGENS
HYDRAZOIC ACID
HYDROGEN COMPOUNDS
INFORMATION
INORGANIC ACIDS
KINETICS
LUMINESCENCE
NONMETALS
NUMERICAL DATA
REACTION KINETICS
VIBRATIONAL STATES
YIELDS