New hydroxylamine-containing macrobicyclic encapsulating ligand: Unexpected double addition of ethyl radicals to the azomethine fragment of a boron-capped iron(II) clathrochelate dioximate

2013 ◽  
Vol 36 ◽  
pp. 117-121 ◽  
Author(s):  
Alexey B. Burdukov ◽  
Mikhail A. Vershinin ◽  
Evgenii G. Boguslavsky ◽  
Ilya V. Eltsov ◽  
Galina V. Romanenko ◽  
...  
Keyword(s):  
Ethyl Radicals ◽  
Azomethine Fragment

ChemInform Abstract: DISPROPORTIONATION REACTIONS BETWEEN ALKYL AND FLUOROALKYL RADICALS. II. FLUORO- AND TRIFLUOROMETHYL WITH ETHYL RADICALS

1984 ◽  
Vol 15 (18) ◽  
Author(s):  
G. O. PRITCHARD ◽  
W. B. NILSSON ◽  
P. E. MARCHANT ◽  
L. C. CASE ◽  
J. F. PARMER ◽  
...  
Keyword(s):  
Ethyl Radicals

ChemInform Abstract: FTIR Study of the Reaction of Ethyl Radicals with O2 and Cl2 in Air at 295 K.

ChemInform ◽  
1990 ◽  
Vol 21 (13) ◽  
Author(s):  
T. J. WALLINGTON ◽  
J. M. ANDINO ◽  
E. W. KAISER ◽  
S. M. JAPAR
Keyword(s):  
Ftir Study ◽  
Ethyl Radicals

COMBINATION AND DISPROPORTIONATION OF ETHYL RADICALS: INFLUENCE OF THE REACTION H+C2H5 = C2H6

1955 ◽  
Vol 33 (5) ◽  
pp. 821-829 ◽  
Author(s):  
Moyra J. Smith ◽  
Patricia M. Beatty ◽  
J. A. Pinder ◽  
D. J. Le Roy
Keyword(s):  
Light Intensity ◽  
Excellent Agreement ◽  
Mercury Concentration ◽  
Rate Constants ◽  
Room Temperature ◽  
Low Light ◽  
Ethylene Concentration ◽  
Light Intensities ◽  
Ethyl Radicals ◽  
Hydrogenation Of Ethylene

The mercury (3P1) photosensitized hydrogenation of ethylene has been studied at room temperature as a function of ethylene concentration, mercury concentration, and light intensity. In addition to combination and disproportionation, ethyl radicals have been shown to take part in the reaction[Formula: see text]The conditions favoring this reaction have been established and anomalous values previously found for the ratio of ethane to butane have been explained. The value obtained for the ratio of the rate constants for the disproportionation and combination of ethyl radicals, 0.15 ±.01, is in excellent agreement with the values obtained by other methods. Hexane formation is of some importance at low light intensities and high ethylene concentrations, and is adequately accounted for by the reactions[Formula: see text]

The mercury (63P1) photosensitized hydrogenation of ethylene. Kinetics of the reaction C2H5 + H2 = C2H6 + H

1968 ◽  
Vol 46 (20) ◽  
pp. 3275-3281 ◽  
Author(s):  
L. E. Reid ◽  
D. J. Le Roy
Keyword(s):  
Gas Phase ◽  
Molecular Hydrogen ◽  
Mercury Vapor ◽  
Experimental Conditions ◽  
Working Pressure ◽  
Extinction Coefficients ◽  
Secondary Reactions ◽  
Ethyl Radicals ◽  
Kinetics Of ◽  
Hydrogenation Of Ethylene

A quantitative study has been made of the reaction of ethyl radicals with molecular hydrogen in the gas phase in the temperature range 240 to 320 °C. The mercury (63Pi) photosensitized decomposition of hydrogen in the presence of ethylene was used to generate ethyl radicals. Extinction coefficients for the absorption of 2537 Å by mercury vapor were measured and Beer's law was shown to be obeyed under the experimental conditions used. The corrections required to allow for the nonuniformity of radical concentrations in the cell were small. After delineating the experimental conditions necessary to minimize secondary reactions, the rate constant (cm3 mole−1 s−1) for the reaction C2H5 + H2 = C2H6 + H was found to be given by log10k = 12.57 − 13.7/θ. Experiments in the presence of added carbon dioxide showed the absence of hot radical effects at the working pressure of 92 Torr of hydrogen.

Sign in / Sign up

Export Citation Format

Share Document