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Vibration excitation of no in its collisional quenching of O2 (1▵g)

✍ Scribed by E.A. Ogryzlo; B.A. Thrush


Publisher
Elsevier Science
Year
1973
Tongue
English
Weight
193 KB
Volume
23
Category
Article
ISSN
0009-2614

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✦ Synopsis


of [Oz(lA,)] 141. Consequently, any molecule cxcited by O,( 'Zi) would have a vibrationaf popufa-


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The collisional quenching of O2*(1Δg) by
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Rate cocfticicnts for the collisiona! quenching of Of (' a,) by NO and CO, at 2-8 torr and 300 K have been determined. X-NO = (2.48 t 0.23) X lo-" cm3 moleculc~' s-' anzkCOz = (2.56 5 0.12) X IO-" cm3 moleculc~ s-l.

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Relaxation rates for 02('&+) by nonradiative pathways have been determined using the fast-flow technique. 02 ('\3,+) is formed from 0 2 ( l A g ! by an energy pooling process. 02('AK) is generated by passing purified oxygen through a microwave discharge. Oxygen atoms are removed by distilling mercur

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The rate of CoLlisional quenching or I(5p' \*P ,,$ by I2 has been determined u&g time-resolved atomic absorption spectroscopy following tunable laser photoiysis of molecular iodine as (3.6 + 0.3) X 10-l' cm3 mole&k-' s-l. Disaepancies between this and earlier results are discussed.