I-he 4-(trimethyl tin)butyI-2 radical. prepared and excited by the chemical activation reaction of H atoms with 4-(trimethyl tin)butcne-1. was found to randomize its excess internal vibrational energy on a subpicosecond time scale, This result differs from an earlier study on the decomposition of 3-
On the question of heavy-atom blocking of intramolecular vibrational energy transfer
โ Scribed by S.P. Wrigley; D.A. Oswald; B.S. Rabinovitch
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- English
- Weight
- 408 KB
- Volume
- 104
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
โฆ Synopsis
The possibility that a heavy atom can block internal ener,gy transfer in excited species has been further investigated by chemical activation study of 4Xtrimethyl lead)-2-butyl and S-(trimethyl tin)-Z-pentyi radicals. These radicals were prepared and excited by the reaction of H atoms with the corresponding I-oletins. Ener_g randomization was found to occur on a subpicosecond time scale in all the radicals studied
๐ SIMILAR VOLUMES
I:luorcsccncc and phosphorcsccncc spectra, decay times of phosphorcsccncc and quantum-ykld ratio of phosphoruscmcc to fluorescence. for B series of charge-transfer complexes of hexamethylbenzcne (an electron donor) with phthdic anhydridc and its monohalo-and tctrahdo-dcrivativcs, have bcun measured
An approlimatc approach is dcvelopcd to study the interfcrcncc of one-and twoquantum processes in collinear collisions of an atom and a harmonic oscillator. !n deriving an esplicit espression for vibrational transition probabilities, oncquantum processes arc trcatcd rigorously. while the contributio
An upper bbund of 6 X 10" cm3/mole s on the rate constant for the reaction. of atomic oxygen with vibrntional-I$ excited Yz has been deduced from laboiatory'observations and from detailed computer &ulations. From this result it can be shown that no more than 30% of the vibrational energy of Hz is e
A study of the vibration-translation energy transfer in atom-diatom collinear collisions is made. Using an algebraic approach developed by Gazdy and Micha, the time evolution operator of the linearly driven parametric oscillator (LDPO) is obtained, and used to transform the cubic part of the interac