Eberlein, J. and Creuzburg, Martin (1997) Mobility of atomic hydrogen in solid krypton and xenon. JOURNAL OF CHEMICAL PHYSICS, 106 (6). pp. 2188-2194. ISSN 0021-9606, 1089-7690
Full text not available from this repository.Abstract
Atomic hydrogen is produced in xenon and krypton matrix by in situ x-ray induced photolysis of the dopants water, butane, acetone, or methane and trapped interstitially forming the ''caged hydrogen'' with characteristic VUV absorption bands. Their thermal bleaching as investigated between 8 K and 45 K cannot be described by a first-order process. A random walk model is introduced considering the hydrogen atoms to move in a thermally activated diffusive motion to traps where they become ''invisible.'' The temperature dependence of the mean trapping time is Arrhenius-type and characteristic only for the matrix. Infrared experiments have confirmed a partial recovery of die dopant molecule only in krypton. Annealing-induced IR absorption bands are assigned to a new complex which involves two hydrogen atoms. (C) 1997 American Institute of Physics.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | MOLECULAR REACTIONS; AMORPHOUS SOLIDS; MATRICES; XE; AR; PHOTODISSOCIATION; DYNAMICS; KINETICS; SPECTRA; CENTERS |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 17 May 2023 05:43 |
| Last Modified: | 17 May 2023 05:43 |
| URI: | https://pred.uni-regensburg.de/id/eprint/51040 |
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