Localization of Excitation Energy in Chemically Activated Systems. 3-Ethyl-2-methyl-2-pentyl Radicals

Article abstract of DOI:10.1021/j100250a003

Chemically activated 3-ethyl-2-methyl-2-pentyl radicals were produced at 300 K by H-atom addition to 3-ethyl-2-methyl-2-pentene at hydrogen gas pressures of 15 to 10800 torr.These radicals can decompose to 2-methyl-2-pentene and an ethyl radical.The initially produced radical has a nonrandom energy distribution.Our observations help to clarify the size of the initially excited subset of vibrational modes; remaining uncertainty concerns the total number of internal rotational degrees of freedom to be included.An analogy exists to single photon vibrational excitation studies.