The positive and negative ions, formed by electron impact in perfluoromethyl cyclohexane, have been studied in a mass spectrometer. The observation of the most abundant positive ion CF3+ is in agreement with other studios, as is the appearance potential of this ion. Seven negative ions, the most abundant of which is the parent ion C7F14–, have been observed and possible mechanisms for their formation are discussed.
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James et al. (1962) studied this question.
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