Intramolecular vibrational relaxation in the 3-methyl-3 hexyl radical

✍ Scribed by S.P. Wrigley; B.S. Rabinovitch

• Publisher: Elsevier Science
• Year: 1983
• Tongue: English
• Weight: 523 KB
• Volume: 95
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(83)80575-2

✦ Synopsis

Vibrational energy relasation has been measured at Hz bath gas pressures from 1 lo 65000 Torr at 298 K in the competitive channel decomposition of 3-methyl-3-hexyl radicals chemically activated to ~44 kcal mol-I. Decomposition of the initially formed, internally non-randomized ndiuls occurs on a picosecond time scale to produce 2-methyl-1-pentene. Formation of 2-methyl-l-butene is also possible after internal energy relasation has occurred. The presence Of the 3-methyl _group at the site of excitation appears to increase the relasation rate (8 X 1O'2 s -')_ Comparisons rare made with previous studies to help establish the size of the initially excited subset ofvrbrationsl modes.