Theoretical Investigation of the Atmospheric Photochemistry of Glyoxylic Acid in the Gas Phase

2019 ◽  
Vol 123 (38) ◽  
pp. 8109-8121 ◽  
Author(s):  
Aaron W. Harrison ◽  
Miranda F. Shaw ◽  
Warren J. De Bruyn
Keyword(s):  
Gas Phase ◽  
Theoretical Investigation ◽  
Glyoxylic Acid ◽  
Atmospheric Photochemistry

Spontaneous Generation of Stable Pnictinyl Radicals from “Jack-in-the-Box” Dipnictines:  A Solid-State, Gas-Phase, and Theoretical Investigation of the Origins of Steric Stabilization1

2001 ◽  
Vol 123 (37) ◽  
pp. 9045-9053 ◽  
Author(s):  
Sarah L. Hinchley ◽  
Carole A. Morrison ◽  
David W. H. Rankin ◽  
Charles L. B. Macdonald ◽  
Robert J. Wiacek ◽  
...  
Keyword(s):  
Solid State ◽  
Gas Phase ◽  
Theoretical Investigation ◽  
Spontaneous Generation

Experimental and theoretical investigation of gas phase complexes between chloride ion and some chloroethenes

1998 ◽  
Vol 179-180 ◽  
pp. 349-357 ◽  
Author(s):  
Alessandro Bagno ◽  
Anna Donò ◽  
Silvia Martinucci ◽  
Cristina Paradisi ◽  
Gianfranco Scorrano
Keyword(s):  
Gas Phase ◽  
Theoretical Investigation ◽  
Chloride Ion

scholarly journals A theoretical investigation of the reaction between the amidogen, NH, and the ethyl, C2H5, radicals: a possible gas-phase formation route of interstellar and planetary ethanimine

2018 ◽  
Vol 13 ◽  
pp. 30-37 ◽  
Author(s):  
Nadia Balucani ◽  
Dimitrios Skouteris ◽  
Cecilia Ceccarelli ◽  
Claudio Codella ◽  
Stefano Falcinelli ◽  
...  
Keyword(s):  
Gas Phase ◽  
Phase Formation ◽  
Theoretical Investigation

Theoretical investigation of the reactivity in the C–F bond activation of CH3F by Lu+ in the gas phase

2006 ◽  
Vol 431 (4-6) ◽  
pp. 223-226 ◽  
Author(s):  
Ze-Yu Liu ◽  
Yong-Cheng Wang ◽  
Zhi-Yuan Geng ◽  
Xiao-Yan Yang ◽  
Han-Qing Wang
Keyword(s):  
Gas Phase ◽  
Theoretical Investigation ◽  
Bond Activation

Gas-phase hydration of glyoxylic acid: Kinetics and atmospheric implications

Chemosphere ◽  
2017 ◽  
Vol 186 ◽  
pp. 430-437 ◽  
Author(s):  
Ling Liu ◽  
Xiuhui Zhang ◽  
Zesheng Li ◽  
Yunhong Zhang ◽  
Maofa Ge
Keyword(s):  
Gas Phase ◽  
Glyoxylic Acid

The gas-phase photochemistry and thermal decomposition of glyoxylic acid

1985 ◽  
Vol 63 (2) ◽  
pp. 542-548 ◽  
Author(s):  
R. A. Back ◽  
S. Yamamoto
Keyword(s):  
Thermal Decomposition ◽  
Carbon Monoxide ◽  
Absorption Spectrum ◽  
Gas Phase ◽  
Singlet State ◽  
Glyoxylic Acid ◽  
Static System ◽  
First Order ◽  
Increasing Temperature ◽  
Homogeneous Formation

The photolysis of glyoxylic acid vapour has been studied at five wavelengths, 382, 366, 346, 275, and 239 nm, and pressures from about 1 to 6 Torr, at a temperature of 355 K. Major products were CO2 and CH2O, initially formed in almost equal amounts, while minor products were CO and H2. Except at 382 nm, the system was complicated by the rapid secondary photolysis of CH2O. Three primary processes are suggested, each involving internal H-atom transfer followed by dissociation.The absorption spectrum is reported and shows the three distinct absorption systems. A finely-structured spectrum from about 320 to 400 nm is attributed to a transition to the first excited π* ← n+ singlet state; a more diffuse absorption ranging from about 290 nm to a maximum at 239 nm is assigned to the π* ← n− state, while a much stronger absorption beginning below 230 nm is attributed to the π* ← π transition. Product ratios vary with wavelength and depend on which excited state is involved.The thermal decomposition was studied briefly in a static system at temperatures from 470 to 710 K and pressures from 0.4 to 8 Torr. Major products were again CO2 and CH2O, but the latter was always less than stoichiometric. First-order rate constants for the apparently homogeneous formation of CO2 are described by Arrhenius parameters log A (s−1) = 7.80 and E = 30.8 kcal/mol. Carbon monoxide and H2 were minor products, and the CO/CO2 ratio increased with increasing temperature and showed some surface enhancement at lower temperatures. The SF6-sensitized thermal decomposition of glyoxylic acid, induced by a pulsed CO2 laser, was briefly studied, with temperatures estimated to be in the 1100–1600 K range, and the CO/CO2 ratio increased with increasing temperature, continuing the trend observed in the static system.

Sign in / Sign up

Export Citation Format

Share Document