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Reaction of anthracene with atomic ions of interstellar interest. A FALP measurement at room temperature

✍ Scribed by A. Canosa; S. Laubé; C. Rebrion; D. Pasquerault; J.C. Gomet; B.R. Rowe

Publisher: Elsevier Science
Year: 1995
Tongue: English
Weight: 543 KB
Volume: 245
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(95)01040-g

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✦ Synopsis

We present the results obtained on studying the reaction of anthracene with some atomic ions of interstellar interest (He + and C ÷) and with Ar ÷. Rate coefficients have been measured at room temperature (293 K) in afterglow experiments using flowing afterglow Langmuir probe-mass spectrometer apparatus. Reactions proceed with rate coefficients of respectively 5.2 × 10 -9, 3 × 10 -9, 1 X 10 -9 cm 3 s -l for He ÷, C + and Ar +. The results were obtained with an uncertainty of about 30% and were found to be close to the Langevin rate. The nature of the products has also been investigated. More particularly, the evidence for carbon accretion and for the production of doubly charged species is discussed.

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Electron attachment to anthracene. A FAL

Electron attachment to anthracene. A FALP measurement of the rate coefficient at room temperature

✍ A. Canosa; D.C. Parent; D. Pasquerault; auJ.C. Gomet; S. Laubé; B.R. Rowe 📂 Article 📅 1994 🏛 Elsevier Science 🌐 English ⚖ 592 KB

The rate coefficient /? for electron attachment to anthracene has been measured at room temperature using a flowing afterglow Langmuir probe mass spectrometer. A value of 1 x 10e9 cm3 s-t (30% uncertainty) was found, indicating that an activation energy barrier might exist.