𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A shock tube study of the OH + OH → H2O + O reaction

✍ Scribed by Margaret S. Wooldridge; Ronald K. Hanson; Craig T. Bowman

Publisher
John Wiley and Sons
Year
1994
Tongue
English
Weight
683 KB
Volume
26
Category
Article
ISSN
0538-8066

No coin nor oath required. For personal study only.

✦ Synopsis

The rate coefficient for the reaction (1) OH + OH --* HzO + 0 has been determined in mixtures of nitric acid (HNO3) and argon in incident shock wave experiments. Quantitative OH time-histories were obtained by cw narrow-linewidth uv laser absorption of the Rl(5) line of the A2 x+ + X 2 ni (0,O) transition at 32606.56 cm-l (vacuum). The experiments were conducted over the temperature range 1050-2380 K and the pressure range 0.18-0.60 atm. The second-order rate Coefficient was determined to be kl = 9.40 X T4.77 ex p(+4570/T [K]) [cm3 mol-' s-'] with overall uncertainties of +11%, -16% at high temperatures and +25%, -22% at low temperatures. By incorporating data from previous investigations in the temperature range 298-578 K, the following expression is determined for the temperature range 298-2380 K k1 = 3.57 X lo4 T2.40 exp(+1063/T [K]) [cm3 mol-' s-'].

📜 SIMILAR VOLUMES

Photoinitiation of the O− + H2O→OH−+OH i
Photoinitiation of the O− + H2O→OH−+OH ion—molecule reaction within the O−2·H2O binary complex
✍ Mark A. Buntine; David J. Lavrich; Caroline E. Dessent; M.Georgina Scarton; Mark 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 689 KB

We report the observation of the O-+H,O+OH-+OH ion-molecule reaction following photodissociation of 0, within the 0: .H20 ion-dipole complex. Photoexcitation of the 0~ A % ,+X 'lIn dissociative transition in the 200-300 nm region initiates the reaction. The 0-'H20 reaction intermediate is the domina

A mixed quantal/classical study of the r
A mixed quantal/classical study of the reaction OH + H2 → H2O + H
✍ N. Balakrishnan; G.D. Billing 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 630 KB

An improved version of a recently reported semiclassical wavepacket approach is used to compute initial state selected total integral cross sections as well as thermal rate constants for the reaction OH+H2 ---\* H20+H. The method involves treating the diatomic vibrations as well as their relative tr

A study of isotope effects in the reacti
A study of isotope effects in the reaction O+ + H2O/D2O → OH+/OD+ + OH/OD using guided-ion beams
✍ Dale J. Levandier; Rainer A. Dressler; Edmond Murad 📂 Article 📅 1996 🏛 Elsevier Science 🌐 English ⚖ 550 KB

Guided-ion beam methods were used to measure the absolute cross sections for OH+/OD + derived from O + and H20/D20 collisions over the range of 0.25-20 eV relative energy. The cross sections for the isotopic homologues have the same form, a bimodal behavior that appears to be related to the thermoch