Dynamics and Absolute Cross Sections of Some Hot Hydrogen Atom Reactions

1985 ◽  
Vol 89 (3) ◽  
pp. 316-318 ◽  
Author(s):  
K. Kleinermanns ◽  
J. Wolfrum
Keyword(s):  
Hydrogen Atom ◽  
Cross Sections

Metastable hydrogen atom scattering by crossed molecular beams: Total cross-sections for H(2s)–Kr, O2 and Cl2 at thermal energies

1998 ◽  
Vol 290 (1-3) ◽  
pp. 17-23 ◽  
Author(s):  
Brunetto G. Brunetti ◽  
Pietro Candori ◽  
Jaime De Andres ◽  
Stefano Falcinelli ◽  
Marta Stramaccia ◽  
...  
Keyword(s):  
Hydrogen Atom ◽  
Cross Sections ◽  
Molecular Beams ◽  
Total Cross Sections ◽  
Atom Scattering ◽  
Crossed Molecular Beams

FREE RADICALS BY MASS SPECTROMETRY: XI. THE MERCURY PHOTOSENSITIZED DECOMPOSITION OF C2–C4 OLEFINS

1956 ◽  
Vol 34 (6) ◽  
pp. 701-715 ◽  
Author(s):  
F. P. Lossing ◽  
D. G. H. Marsden ◽  
J. B. Farmer
Keyword(s):  
Mass Spectrometry ◽  
Free Radicals ◽  
Hydrogen Atom ◽  
Mass Spectrometer ◽  
Cross Sections ◽  
Methyl Radicals ◽  
Allyl Radical

The mercury photosensitized (Hg3P1) decomposition of olefins has been examined using a reactor coupled directly to a mass spectrometer. The primary split of ethylene has been shown to be predominantly molecular, and that of propylene mainly into an allyl radical and a hydrogen atom. With 1-butene the split is predominantly at a C–C bond giving allyl and methyl radicals, although a rupture of a C–H bond occurs as well. With 2-butene and isobutene a C–H bond is broken. It is concluded that the allyl and methallyl radicals produced have large cross sections for reaction with excited mercury atoms.

The elastic scattering of slow positrons by hydrogen atoms

1964 ◽  
Vol 278 (1375) ◽  
pp. 479-489 ◽  
Keyword(s):  
Elastic Scattering ◽  
Hydrogen Atom ◽  
Differential Equations ◽  
Cross Sections ◽  
Hydrogen Atoms ◽  
Elastic Collisions

Cross-sections are calculated for the elastic collisions of slow positrons by hydrogen atom s by the use of an approximation in which virtual positronium production and polarization of the atom by the positron are allowed for, the latter by the method of polarized orbitals. The coupled integro-differential equations involved are solved by electronic computation. Very satisfactory results are obtained as judged by comparison with other methods.

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