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Identification of two separate mechanisms for HCN loss from gas phase quinoline cations

Identification of two separate mechanisms for HCN loss from gas phase quinoline cations
Identification of two separate mechanisms for HCN loss from gas phase quinoline cations
Critical energy measurements on 13C-labelled quinolines show that the energy requirement for elimination of H(C-2)N from metastable ions is lower than that for H(C-3)N elimination, the critical energies being 4.03 ± 0.05 eV and 4.17 ± 0.05 eV, respectively. It is also shown that involvement of C-2 and C-3 in unimolecular HCN elimination from ions in the second field-free region is greater, by factors of approximately 3 and 2 respectively, than would be anticipated for elimination following complete carbon randomization.
29-31
Baldwin, Michael A
fa23610d-20fd-4208-b6f7-0bf7fc7f11db
Langley, G. John
7ac80d61-b91d-4261-ad17-255f94ea21ea
Baldwin, Michael A
fa23610d-20fd-4208-b6f7-0bf7fc7f11db
Langley, G. John
7ac80d61-b91d-4261-ad17-255f94ea21ea

Baldwin, Michael A and Langley, G. John (1986) Identification of two separate mechanisms for HCN loss from gas phase quinoline cations. Organic Mass Spectrometry, 21 (1), 29-31. (doi:10.1002/oms.1210210107).

Record type: Article

Abstract

Critical energy measurements on 13C-labelled quinolines show that the energy requirement for elimination of H(C-2)N from metastable ions is lower than that for H(C-3)N elimination, the critical energies being 4.03 ± 0.05 eV and 4.17 ± 0.05 eV, respectively. It is also shown that involvement of C-2 and C-3 in unimolecular HCN elimination from ions in the second field-free region is greater, by factors of approximately 3 and 2 respectively, than would be anticipated for elimination following complete carbon randomization.

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Published date: 1986

Identifiers

Local EPrints ID: 498993
URI: http://eprints.soton.ac.uk/id/eprint/498993
PURE UUID: 1c7dd756-4bec-46b8-b36e-dbb212a75a7a
ORCID for G. John Langley: ORCID iD orcid.org/0000-0002-8323-7235

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Date deposited: 06 Mar 2025 17:41
Last modified: 07 Mar 2025 02:33

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Contributors

Author: Michael A Baldwin
Author: G. John Langley ORCID iD

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