A Study of the Pyrolysis of Methyl Ethyl and Diethyl Carbonates in the Gas Phase

1965 ◽  
Vol 69 (9) ◽  
pp. 3013-3017 ◽  
Author(s):  
Alvin S. Gordon ◽  
William P. Norris
Keyword(s):  
Gas Phase ◽  
Methyl Ethyl

Hydrogen bonding in the gas phase: the thermodynamic properties of hydrogen fluoride-ether complexes and their far infrared spectra

1971 ◽  
Vol 322 (1548) ◽  
pp. 137-146 ◽  
Keyword(s):  
Hydrogen Bonding ◽  
Gas Phase ◽  
Infrared Spectra ◽  
Equilibrium Constants ◽  
Far Infrared ◽  
Methyl Ethyl ◽  
Rotational Contour ◽  
Stretching Vibration ◽  
Conformational Rearrangements ◽  
Far Infrared Spectra

The equilibrium constants of gas-phase complexes of HF with dimethyl, methyl ethyl and diethyl ether have been measured at several temperatures using the Benesi-Hildebrand approximation on the absorption band of the HF stretching vibration in the complex. From these, values of Δ H of — 43, — 38 and — 30 kJ mol -1 respectively, have been determined. They are interpreted in terms of conformational rearrangements of the ethers when they form hydrogen bonds. The far infrared spectra of the complexes with both HF and DF have also been recorded and in each case a band observed at around 180 cm -1 which is assigned to the intermolecular stretching mode of vibration. For the complex between HF and dimethyl ether a rotational contour has been observed at about 10 cm -1 .

Competition between electron transfer and base-induced elimination mechanisms in the gas-phase reactions of superoxide with alkyl hydroperoxides

2021 ◽  
Vol 23 (9) ◽  
pp. 5583-5595
Author(s):  
Ezequiel Fragoso Vieira Leitão ◽  
Miguel Angelo Fonseca de Souza ◽  
Silmar Andrade do Monte ◽  
Elizete Ventura
Keyword(s):  
Electron Transfer ◽  
Gas Phase ◽  
Superoxide Anion ◽  
Methyl Ethyl ◽  
Gas Phase Reactions ◽  
Alkyl Hydroperoxides

Elucidating the possible pathways in the mechanisms of the superoxide anion reactions with methyl, ethyl and tert-butyl hydroperoxides.

Reactions of thiyl radicals. V. The gas phase photolysis of methyl disulfide and ethyl disulfide mixtures in the presence of ethylene

1968 ◽  
Vol 46 (14) ◽  
pp. 2462-2464 ◽  
Author(s):  
P. M. Rao ◽  
A. R. Knight
Keyword(s):  
Gas Phase ◽  
Methyl Ethyl ◽  
Thiyl Radicals ◽  
Disulfide Formation ◽  
Presence And Absence ◽  
Low Efficiency

The gas phase photolysis of methyl disulfide and ethyl disulfide and their mixtures, in the presence and absence of ethylene, has been studied at 25 °C and λ = 2300–2800 Å. The pure substrates give predominantly the corresponding thiol, whereas co-photolysis yields methyl ethyl disulfide in appreciably larger yields.When ethylene is added, the substrates individually show a reduction in RSH rate and the formation of relatively small amounts of sulfides. In their co-photolysis, added C2H4 does not appreciably alter the rate of methyl ethyl disulfide formation, indicating a low efficiency of RS scavenging by the olefin in this system.Isopropanol and 2,3-dimethyl butane do not increase the thiol yield from the pure substrates.

Gas-phase methyl ethyl ketone biodegradation in a tubular biofilm reactor: microbiological and bioreactor aspects

1997 ◽  
pp. 417-436
Author(s):  
Emmanuël Hellin ◽  
Hocine Ali-Khodja ◽  
Sébastien Deseveaux ◽  
Fabrice Vandermesse ◽  
Edmond-Jacques Nyns ◽  
...  
Keyword(s):  
Gas Phase ◽  
Methyl Ethyl Ketone ◽  
Biofilm Reactor ◽  
Methyl Ethyl
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