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Production mechanism of H* in the He (2 3S)+CH2Cl2 reaction

✍ Scribed by Konrad T. Wu; Chanaka Mendis; Ahmed Abrahim; Robert Oldmixon

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 422 KB
Volume: 210
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(93)89110-4

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✦ Synopsis

The line shapes of the Balmer lines (n= 3, 4) produced from the reaction between methylene chloride and metastable helium atom He (2 %) in a high vacuum chamber were analyzed, and the nascent translational energies were estimated from their Doppler broadening profiles. The fractions of available energy partitioned into translational energy can be explained by a simple impulsive model incorporating vibrational excitation due to geometry change during transition from the parent to product fragments. The precursor state was assigned to a Rydberg component converging to the upper state of CH,CI$. Subsequent predissociation of the Rydberg state leads to the production of H*.

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