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U.S. Department of Health and Human Services

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Org Mass Spectrom 1985 Jan;20(1):58-60

Chemical ionization of ethylene dibromide with ammonia gas

Cairns T, Siegmund EG


Under ammonia chemical ionization conditions, a fragment ion of ethylene dibromide undergoes a nucleophilic substitution reaction which is demostrated to be highly pressure-dependent upon the reagent gas concentration. This reaction is strongly influenced by the stability of the intermediate carbonium ion and the ability of the substituted product ion to be stabilized by intramolecular hydrogen bonding.

Category: Journal Article
Includes FDA Authors from Scientific Area(s): Regulatory Affairs
Entry Created: 2012-12-14