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On the production and composition of doubly ionized NH3 clusters

✍ Scribed by T.D. Märk

Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
167 KB
Volume
163
Category
Article
ISSN
0009-2614

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✦ Synopsis

Recently, Coolbaugh, Peifer and Garvey reported the observation that the mass spectral peaks attributed to doubly charged NH3 clusters (produced by electron impact ionization) are each composed of seven individual peaks. Two smaller peaks to the left of the parent peak (NH,) :' were explained as being due to unimolecular fragmentation processes within such parent ions. Previous ionization threshold law measurements and other arguments, however, suggest that these ions are formed by prompt dissociative ionization processes during the primary ionization process.

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