Effect of initial energy of hydrogen atoms on two-site trapping in solid argon at 4 K

1982 ◽  
Vol 86 (19) ◽  
pp. 3881-3883 ◽  
Author(s):  
Tetsuo Miyazaki ◽  
Akihiro Wakahara ◽  
Takahiro Usui ◽  
Kenji Fueki
Keyword(s):  
Initial Energy ◽  
Hydrogen Atoms ◽  
Solid Argon

Effect of initial energy of hydrogen atoms on reactions and trapping in solid hydrogen at 4 K

1983 ◽  
Vol 87 (9) ◽  
pp. 1611-1613 ◽  
Author(s):  
Tetsuo Miyazaki ◽  
Haruyuki Tsuruta ◽  
Kenji Fueki
Keyword(s):  
Initial Energy ◽  
Solid Hydrogen ◽  
Hydrogen Atoms

Multiple Trapping Sites for Hydrogen Atoms in Solid Argon

1959 ◽  
Vol 2 (2) ◽  
pp. 43-45 ◽  
Author(s):  
E. L. Cochran ◽  
V. A. Bowers ◽  
S. N. Foner ◽  
C. K. Jen
Keyword(s):  
Hydrogen Atoms ◽  
Multiple Trapping ◽  
Solid Argon ◽  
Trapping Sites

Effect of initial energy of hydrogen atoms on trapping and reaction in solid methane at 4 K

1982 ◽  
Vol 86 (10) ◽  
pp. 1781-1784 ◽  
Author(s):  
Akihiro Wakahara ◽  
Tetsuo Miyazaki ◽  
Kenji Fueki
Keyword(s):  
Initial Energy ◽  
Hydrogen Atoms ◽  
Solid Methane

HIGH ENERGY REACTIONS OF ATOMIC HYDROGEN

1960 ◽  
Vol 38 (10) ◽  
pp. 1722-1733 ◽  
Author(s):  
Michael Henchman ◽  
David Urch ◽  
Richard Wolfgang
Keyword(s):  
Atomic Hydrogen ◽  
Organic Molecules ◽  
High Energy ◽  
Initial Energy ◽  
Hydrogen Atoms ◽  
Collision Efficiency ◽  
Detailed Mechanism ◽  
Thermal Reactions ◽  
High Kinetic Energy ◽  
Very High

The chemistry of hot hydrogen atoms has been studied using tritium of high kinetic energy as produced by nuclear recoil. The possibilities and limitations of this technique are discussed using a collision theory for reactions of atoms having a very high initial energy. Using this theory and certain experimental data, it is concluded that hot hydrogen atoms react to combine with organic molecules at very high collision efficiency (of the order of approximately 0.2 to 0.4) in the energy range 3–10 ev. There is no indication that collisions at much higher energies lead to combination. With most systems, e.g. alkanes, a wide variety of reactions is observed. The systematics of these hot reactions is discussed and evidence on their detailed mechanism is presented. It appears that most products are formed by a fast displacement of an atom or group by the hot hydrogen. There is no evidence for the formation of a common, internally equilibrated, collision complex which decays on a statistically determined basis to the various products. Instead, the course of the reactions seems largely governed by the direction and point of impact of the hot atom. Thus, stereochemical evidence indicates that axial approach of the hot hydrogen atom along the C—H bond axis leads to abstraction while approach at large angles to this axis results in displacement without Walden inversion. In some cases sufficient excitation energy is introduced in the hot displacement process to cause further decomposition of the primary product. This model of high-energy reactions is compared with that of thermal reactions and its general implications are briefly discussed.

Infrared Absorptions of Interstitial Hydrogen Atoms in Solid Argon and Krypton

1972 ◽  
Vol 56 (8) ◽  
pp. 3832-3836 ◽  
Author(s):  
Vladimir E. Bondybey ◽  
George C. Pimentel
Keyword(s):  
Hydrogen Atoms ◽  
Solid Argon ◽  
Interstitial Hydrogen

Remarks on the diffuse interstellar lines

1967 ◽  
Vol 31 ◽  
pp. 91-93 ◽  
Author(s):  
G. Herzberg
Keyword(s):  
Hydrogen Atoms ◽  
Interstellar Gas

It is suggested that the diffuse interstellar lines are produced in the interstellar gas by molecules consisting of a few hydrogen atoms and one other atom, such as CH4+ or NH4. Diffuseness of the lines is assumed to result from predissociation of these molecules.

SURFACE PLASMA SOURCE OF HYDROGEN ATOMS WITH AN ENERGY OF HUNDREDS eV

1979 ◽  
Vol 40 (C7) ◽  
pp. C7-479-C7-480 ◽  
Author(s):  
V. G. Dudnikov ◽  
G. I. Fiksel'
Keyword(s):  
Plasma Source ◽  
Surface Plasma ◽  
Hydrogen Atoms
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