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McAdoo DJ, Hudson CE, Traeger JC, et al. Size effects in ion-neutral complex-mediated alkane eliminations from ionized aliphatic ethers. J Am Soc Mass Spectrom. 1991;2(4):261-9doi: 10.1016/1044-0305(91)80017-2.
McAdoo, D. J., Hudson, C. E., Traeger, J. C., Grose, A., & Griffin, L. L. (1991). Size effects in ion-neutral complex-mediated alkane eliminations from ionized aliphatic ethers. Journal of the American Society for Mass Spectrometry, 2(4), 261-9. https://doi.org/10.1016/1044-0305(91)80017-2
McAdoo, D J, et al. "Size effects in ion-neutral complex-mediated alkane eliminations from ionized aliphatic ethers." Journal of the American Society for Mass Spectrometry vol. 2,4 (1991): 261-9. doi: https://doi.org/10.1016/1044-0305(91)80017-2
McAdoo DJ, Hudson CE, Traeger JC, Grose A, Griffin LL. Size effects in ion-neutral complex-mediated alkane eliminations from ionized aliphatic ethers. J Am Soc Mass Spectrom. 1991 Aug;2(4):261-9. doi: 10.1016/1044-0305(91)80017-2. PMID: 24242345.
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J Am Soc Mass Spectrom. 1991 Aug;2(4):261-9. doi: 10.1016/1044-0305(91)80017-2.

Size effects in ion-neutral complex-mediated alkane eliminations from ionized aliphatic ethers.

Journal of the American Society for Mass Spectrometry

D J McAdoo, C E Hudson, J C Traeger, A Grose, L L Griffin

Affiliations

  1. Marine Biomedical Institute, University of Texas Medical Branch, 200 University Eoulevard, 77550, Galveston, TX.

PMID: 24242345 DOI: 10.1016/1044-0305(91)80017-2

Abstract

The effects of the size of the ionic and neutral partners on ion-neutral complex-mediated alkane eliminations from ionized aliphatic ethers were determined by obtaining metastable decomposition spectra and photoionization ionization efficiency curves. Increasing the size of the ionic partner decreases the competitiveness of alkane elimination with alkyl loss. This is attributed to decreasing attraction between the partners with increasing distance between the neutral partner and the center of charge in the associated ion. Increasing the size of the neutral partner lowers the threshold for alkane elimination relative to that for simple dissociation when the first threshold is above ΔHf(products). This is attributed to increasing attraction between the partners with increasing polarizability of the radical in the complex. Adding a CH2 to the radical in a complex seems to increase the attraction between the partners by about 24 kJ mol(-1).

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