Excited iodine atoms :(\*PI/~) are formed by laser irradiation of C2FS I at 2950 A. The mczm radiative lifetime T of these metastsble atoms and their bimolecular rate constant k2 for deactivation in collisions with C2 F5 I were measured to be: T = 108 +-10 ms; k2 = (1.8 i 0.1) X 10-l' cm3/molec s. \
The radiative lifetime of the metastable iodine atom I(52P1/2)
โ Scribed by R.G. Derwent; B.A. Thrush
- Publisher
- Elsevier Science
- Year
- 1971
- Tongue
- English
- Weight
- 204 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
โฆ Synopsis
When traces of iodine are added to discharged oxygen from which atomic oxygen has been removed, the equiLihrium F,/2) + 02?;r;i) , IS rapidly eatublished. Comparison of the intensities of emission by 02('Ag) and l&~/z] yields a radiative lif+Wme of 0.17a0.04 set for the Iatkr.
๐ SIMILAR VOLUMES
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.
The radiative lifetime of the 2P,/2 pm s m-orbit level of ground-state atomic chlorine has been determined by [unable diode laser absorplion measuremenu 01 Lhe 'P, (4\_14~0\_89)xlO-" cm'! molecule-' cm-' ?(f= 1) c 2P3,2( F= 3) lransilion ar 882.36 cm-'. An inlegrawd line slrenglh 01 (sum or Ihe line
EIectroniUIlY excited iodine atoms, 1(5'P,,,), have been monitored using time xsolved atomic resmancc fluorescence. Rate data t'or quenching by C3Hs and CD4 ax presented.
Collisional quenching and radiative decay of the 4p 'P level of the boron atom has been studied in a cell experiment, in which B atoms are prepared by 266 nm multiphoton dissociation of BBr, and the 4p aP level is prepared by sequential 2-photon absorp tion through the 3s \*S level. A radiative life