The rate constant for N,(A, v=O) deactivation by H has been measured by monitoring the decrease in the N,(A, v=O) -+N,(X, v=6) emission when H is added to a flow stream containing N\*(A). The value is found to be 5 x lo-" cm3 s-l, with an uncertainty of z 50%.
Quenching of N2(A3∑+u) by Hg(II) halides
✍ Scribed by T.D. Dreiltng; D.W. Setser
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- English
- Weight
- 618 KB
- Volume
- 74
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
The fIo\vmg afterglow technique has been used to study the reactions of N2(A3z* U. v = 0.1) with some methylmercury and mercunc hahdes. Room temperature quenchmg rate constants and rate constants for production of HgX(F3 %z') were measured_ Evidence is presented that shows another electromc state of N 2, besides N*(A). can produce HgX<B) via dissaciahve evcltation reachons wth HgXz.
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Quenching of N,(A3ZU+) by 0, 0, N, and
The lime decay of N,(AjI: ) produced by pulsed phololysls of GIN, a1 193 nm erhlblls I~O componenls a fasi decay correspondmg IO pseudo-firsl-order quenchmg by GIN, and a much slouer decal correspondmg IO a chain process In which N?(A'Z; ) IS regenerated The iale conslanl for N,(A'T; ) qurnchng by
L@t rnoasurcments made during the afterglow oi pure nitrogen and helium-nitrogen mixtures indicate that mutual collisions of the N?(A 'XL) molecule are responsible for the formation of the Nz(C3n,) and Nz(C?nu) states. Results for the latter state arc in agreement with other workers. A value for th
A vaIue of (9.3 = 1.7) X IO-\*\* cm3 molecule-' s-' has been determined as the rate constant for the quenchinp ai Op(A 3ZG) by N2 at 25OC.
Nz(A. u = O-3) produced by the AI(~P~,~) + N2 reaction and detected by laser-induced fluorescence undergoes rapid, stcpwise vibrational relaxation but slow electronic quenching with added CH4 or CF4. Rate constants, k& of 1.5,3.1, and 5.0 X lo-l2 cm3 s-' are measured for Q = CH4, u = 1-3, and O-47,1