INVESTIGATION OF THE CONTRIBUTION OF PHENYL RADICALS TO REACTIONS IN SOLUTION WITH THE HELP OF DEUTERIUM (in German)
Reactions with the contribution oi free phenyl radicals (as the photolysis of iodobenzene or the decomposition of benzoyl peroxide) lead, when they are carried out in solu, tions of C/sub 6/D/sub 6/, C/sub 6/D/sub 6/ + C/sub 6/H/sub 6/, or C/sub 6/D/sub 12/ + C/sub 6/H/sub 12/, to the appearance of the benzenes C/sub 6/H/sub 5/D and C/sub 6/H/sub 6/ in the solvent. Thes e were used for the study of some reactions with unknown or poorly known mechanisms. It was shown that the photolysis of mercury biphenyl, the oxidation of benzene with chromyl chloride, the reaction of magnesium with iodobenzene, and the reaction of phenyl-diazonium chloride with aqueous solution of caustic soda proceeds by a radical mechanism. On the other hand, the thermal decomposition of phenyl dia. zonium chloride and phenyl diazonium borofluoride proceed, by the transposition of the phenyl residue in the reaction complex without release of the radical. The reaction of iodobenzene with sodium does not proceed by a radical but by an ion mechanism. Mechanisms for the reactions investigated were proposed based on the isotopic analysis of the reaction products and of the benzene or cyclohexane in which they are carried out. The isotopic benzene molecules C/sub 6/H/sub 5/D and C/sub 6/H/sub 6/ are formed in the radical reaction in ben zene as a result of the splitting of hydrogen from the alpha hydrodiphenyl molecules by the phenyl radicals and not by the benzene molecule. (tr-auth)
- Research Organization:
- Inst. of Physics and Chemistry, Kiev
- NSA Number:
- NSA-17-002711
- OSTI ID:
- 4758588
- Journal Information:
- Kernenergie (East Germany), Journal Name: Kernenergie (East Germany) Vol. Vol: 5; ISSN KERNA
- Country of Publication:
- Country unknown/Code not available
- Language:
- German
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