Collision-energy resolved steric effect on the Penning ionization reaction of tert-butyl bromide and Kr(3P)
✍ Scribed by K Koizumi; H Ohoyama; T Kasai
- Publisher
- Elsevier Science
- Year
- 2003
- Tongue
- English
- Weight
- 266 KB
- Volume
- 378
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
Collision energy dependence of the Penning ionization cross-section for the Kr( 3 P) + (CH 3 ) 3 CBr ! Kr + (CH 3 ) 3 CBr þ + e À reaction was determined under orientation-angle resolved condition using an oriented (CH 3 ) 3 CBr beam and time-of-flight measurements. A remarkable resonance-type structure was found in the energy dependence of orientation-angle resolved Penning ionization cross-section. This resonance-type structure could be interpreted as a new-type Ônuclear-excited Feshbach resonanceÕ in the formation of vibrational excited Rydberg states leading to a competitive dissociative exit channel.