The kinetics of the title reactions have been studied using the discharge-flow mass spectrometic method at 296 K and 1 torr of helium. The rate constant obtained for the forward reaction (1), using three different experimental approaches (kinetics of Br Br ϩ IBr : I ϩ Br 2 consumption in excess of
Transformation of spin-orbit excited states of halogen atoms in the chemical reactions F + Br2 → BrF + Br, I*+ Br2 → IBr + Br, and Br + IBr → Br2 + I
✍ Scribed by E.B. Gordon; A.I. Nadkhin; S.A. Sotnichenko; I.A. Boriev
- Publisher
- Elsevier Science
- Year
- 1982
- Tongue
- English
- Weight
- 380 KB
- Volume
- 86
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
The small hser pulse gavl method, based on photochcmlal Br and I hscts, 15 used to probe 'P,,, nnd 2P,,2 stata of iodmc and bromine aloms in the rcncllons F + Br2 -Brr + Br (I). l('Pt,z) + Brz -IBr + Br (Il),and Br + Itcr -Br2 + I (III)
The results obtained arc upablc of formuhtmg B conscrvstlon rule for the spm-orbit ekcttcd skttc.
📜 SIMILAR VOLUMES
The I\*(\* PI/z) + Brt 5z IBr + Br\*(\* Pr/z) reaction has been directly observed by monitoring both the decay of i\* ftuorescence (1.3 p) and the appearance of Br\* fluorescence (2.7 u) following laser photolysrs of i-CjF',I in flowing mLxtures with Brz and argon. The total rate for deactivation of
The kinetics and equilibrium of the gas-phase reaction of CHaCFZBr with IZ were studied spectrophotometrically from 581 to 662°K and determined to be consistent with the following mechanism: KIZ
## A laser pulse-and-probe technique mcorporaling a tunable infrared color center laser is used ICI study the reactIons and quenching of Br(1P,,2. 2 P3,2 ) with 1%. A highly selestive spin-orb11 effecl on chemical reacG<lj is obsewed The ground-slaw reaction, BI-(~P,~)+IB~ + Br2+I, k = (46+0.6)~10
The reactions (2) (3) have been studied competitively in the vapor phase over the range of 52-204°C. The i-C3F7 radicals were generated by means of the reaction It was found that log kz/k3 = (0.55 f 0.07) + (10,870 f 560)/0 where 0 = 2.303RT J/mol. Absolute Arrhenius parameters are derived for the