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Chemical effects of nuclear transformations in mixed crystals. 7. Chemical effects of the /sup 35/Cl(n,. gamma. )/sup 36/Cl nuclear reaction in K/sub 2/ReCl/sub 6/-K/sub 2/ReBr/sub 6/ mixed crystals

Journal Article · · J. Phys. Chem.; (United States)
DOI:https://doi.org/10.1021/j150623a030· OSTI ID:6070970
The solid-state reactions occurring during the moderation of recoiling /sup 36/Cl, produced by the (n,..gamma..) reaction, have been studied in K/sub 2/ReCl/sub 6/-K/sub 2/ReBr/sub 6/ mixed crystals. The main reaction products are Re/sup 36/ClCl/sub 5//sup 2 -/, Re/sup 36/ClBr/sub 5//sup 2 -/, and /sup 36/Cl/sup -/, but the more intimately mixed species Re/sup 36/ClCl/sub n/Br/sub 5-n//sup 2 -/ (n = 1, 2, 3, 4) are found in significant amounts. The production of the different recoil-labeled species can be explained by elementary impact models: 6% of the recoils do not leave their original lattice site (primary retetion); between 6% and 23%, dependent upon the mixed-crystal composition, appear as interstitials; 31 to 48% give rise to direct displacement reactions of one halide ligand; and 40% produce larger disruption by substitution of at least two halide ligands. The results have been compared with Roessler's /sup 38/Cl recoil experiments.
Research Organization:
Chemisches Laboratorium der Universitaet, Freiberg, Germany
OSTI ID:
6070970
Journal Information:
J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 85:23; ISSN JPCHA
Country of Publication:
United States
Language:
English