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Hot-Atom Chemistry of Bromine. IV. Chemical Effects of 81Br(n,γ)82gBr, 81Br(n,γ)82mBr and 82mBr(I. T.)82Br Excitation in Antimony Tribromide and Benzene System

Hot-Atom Chemistry of Bromine. IV. Chemical Effects of 81Br(n,γ)82gBr, 81Br(n,γ)82mBr and... Antimony tribromide and a molecular compound between antimony tribromide and benzene (2:1) have been irradiated to provide 82mBr sources. The results obtained by the dissolution of the irradiated molecular compound, by means of which technique the chemical effects of 81Br(n,γ)82gBr and 82mBr(I.T.)82Br were determined separately, had shown very low organic yields from either (n,γ) or (I.T.) excitation. The reaction of 82mBr(I.T.)82Br in benzene showed a growth in the organic yields. Moreover, the organic yield of 82Br was lower when the system was frozen than when it was stored as a liquid. These results are explained by assuming that, in the frozen system, the antimony tribromide (82mBr) forms a molecular compound with the benzene. The higher organic yields in the frozen systems than those in the molecular compound itself must be due to the formation of free bromine (82mBr), which turns out to be an organic radiobromide. The hydrolytic behavior of the irradiated antimony tribromide and the molecular compound supports the idea of the presence of free bromine (82mBr) at the end of the irradiation. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Bulletin of the Chemical Society of Japan Oxford University Press

Hot-Atom Chemistry of Bromine. IV. Chemical Effects of 81Br(n,γ)82gBr, 81Br(n,γ)82mBr and 82mBr(I. T.)82Br Excitation in Antimony Tribromide and Benzene System

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Publisher
Oxford University Press
Copyright
© 1970 The Chemical Society of Japan
ISSN
0009-2673
eISSN
1348-0634
DOI
10.1246/bcsj.43.1276
Publisher site
See Article on Publisher Site

Abstract

Antimony tribromide and a molecular compound between antimony tribromide and benzene (2:1) have been irradiated to provide 82mBr sources. The results obtained by the dissolution of the irradiated molecular compound, by means of which technique the chemical effects of 81Br(n,γ)82gBr and 82mBr(I.T.)82Br were determined separately, had shown very low organic yields from either (n,γ) or (I.T.) excitation. The reaction of 82mBr(I.T.)82Br in benzene showed a growth in the organic yields. Moreover, the organic yield of 82Br was lower when the system was frozen than when it was stored as a liquid. These results are explained by assuming that, in the frozen system, the antimony tribromide (82mBr) forms a molecular compound with the benzene. The higher organic yields in the frozen systems than those in the molecular compound itself must be due to the formation of free bromine (82mBr), which turns out to be an organic radiobromide. The hydrolytic behavior of the irradiated antimony tribromide and the molecular compound supports the idea of the presence of free bromine (82mBr) at the end of the irradiation.

Journal

Bulletin of the Chemical Society of Japan – Oxford University Press

Published: Mar 27, 2006

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