Abstract
The continuous decrease in hydrogen gas yield during the radiolysis of n- hexane is attributable to the addition of hydrogen atoms to the hexenes concurrently being produced. Unsaturation in the C/sub 7/--C/sub 12/ products arises from the addition reaction of alkyl plus alkenyl radicals. The alkenyl radicals are derived from hydrogen abstraction from hexenes by hydrogen atoms. The over-all kinetics of radiolysis are satisfactorily explained by invoking free radical mechanisms. Ion- molecule reactions appear to play little or no part. Both hot and thermal hydrogen atoms are produced, the former invariably forming hydrogen gas. An explanation for the mechanisms of formation of the socalled molecular products is given. The yield of products can be explained quantitatively by a relatively simple reaction scheme. (auth)
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