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Ionisation of pentafluoroethyl cyanide and heptafluoro-n-propyl cyanide by electron impact

✍ Scribed by J.C.J. Thynne; P.W. Harland

Publisher: Elsevier Science
Year: 1973
Weight: 673 KB
Volume: 11
Category: Article
ISSN: 0020-7381
DOI: 10.1016/0020-7381(73)80019-1

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## Abstract Extensive ^13^C and ^15^N labelling has shown that the molecular ions of 2‐, 3‐ and 4‐cyanopyridine with lifetimes up to 10^−6^ s eliminate hydrogen cyanide originating predominantly from the ring (˜65%). Moreover, this hydrogen cyanide loss occurs after an equilibrated positional inter