A low temperature investigation of the gas-phase N(2D) + NO reaction. Towards a viable source of N(2D) atoms for kinetic studies in astrochemistry

The gas-phase reaction of metastable atomic nitrogen N(2D) with nitric oxide has been investigated over the 296–50 K temperature range using a supersonic flow reactor.

Download Full-text

Pressure dependent low temperature kinetics for CN + CH3CN: competition between chemical reaction and van der Waals complex formation

Physical Chemistry Chemical Physics ◽

10.1039/c6cp01982j ◽

2016 ◽

Vol 18 (22) ◽

pp. 15118-15132 ◽

Cited By ~ 14

Author(s):

Chantal Sleiman ◽

Sergio González ◽

Stephen J. Klippenstein ◽

Dahbia Talbi ◽

Gisèle El Dib ◽

...

Keyword(s):

Low Temperature ◽

Complex Formation ◽

Gas Phase ◽

Rate Coefficient ◽

Flow Reactor ◽

Slow Flow ◽

Phase Reaction ◽

Gas Phase Reaction ◽

Low Temperature Kinetics ◽

Temperature And Pressure

The gas phase reaction between the CN radical and acetonitrile CH3CN was investigated experimentally with a CRESU apparatus and a slow flow reactor as well as theoretically to explore the temperature and pressure dependence of its rate coefficient from 354 K down to 23 K.

Download Full-text

Kinetic studies of the gas phase reaction of 1,2-propylene oxide with the OH radical over a temperature range of 261–335 K

Atmospheric Environment ◽

10.1016/j.atmosenv.2020.117709 ◽

2020 ◽

Vol 237 ◽

pp. 117709

Author(s):

Anmol Virmani ◽

Mohini P. Walavalkar ◽

Asmita Sharma ◽

Sumana Sengupta ◽

Ankur Saha ◽

...

Keyword(s):

Gas Phase ◽

Propylene Oxide ◽

Kinetic Studies ◽

Phase Reaction ◽

Oh Radical ◽

Gas Phase Reaction ◽

Temperature Range

Download Full-text

Gas-phase reactivity of CH3C(O) CH3 with OH radicals at interstellar Temperatures (T = 11.7 – 64.4 K) using the CRESU technique

Proceedings of the International Astronomical Union ◽

10.1017/s1743921319009335 ◽

2019 ◽

Vol 15 (S350) ◽

pp. 379-381

Author(s):

Sergio Blázquez ◽

Antonio J. Ocaña ◽

Alberto García ◽

Bernabé Ballesteros ◽

André Canosa ◽

...

Keyword(s):

Supersonic Flow ◽

Low Temperature ◽

Gas Phase ◽

Pressure Dependence ◽

Freezing Point ◽

Rate Coefficients ◽

Oh Radicals ◽

Phase Reaction ◽

Gas Condensation ◽

Gas Phase Reaction

AbstractThe rate coefficients, k(T= 11.7 – 64.4 K), for the gas-phase reaction between OH radicals and acetone, CH3C(O) CH3, have been measured using the pulsed CRESU (French acronym for Reaction Kinetics in a Uniform Supersonic Flow) technique, the most suitable one to cool down gases below the freezing point without gas condensation. The experimental k(T) was found to increase as temperature was lowered and is several orders of magnitude higher for low temperature than k(300 K). No pressure dependence of k(20 K) and k(64 K) was observed, while k(50 K) at the largest gas density is twice higher than the average values found at lower gas densities. The obtained values of k(11.7 K) and k(21.1 K) were 2.45’10-10 and 1.39’10-10 cm3 molecule-1 s-1, respectively.

Download Full-text