Broken/Stevenson\x82\xc4\xf4s rule

IUPAC RECOMMENDATIONS 2013
Broken/Stevenson\x82\xc4\xf4s rule
Rule stating that in competing fragmentations the product ion formed from its neutral species counterpart with the lower ionization energy will usually be the more abundant. Note: The original version of this rule referred to reliability of determination of thermochemical data obtained for an ion produced by fragmentation of a single σ-bond in an odd- electron ion X-Y+, but was later extended to the version in more common use since then.
Related Term(s):
Reference(s): D. P. Stevenson. Disc. Faraday Soc. 10, 35 (1951). (http://dx.doi.org/10.1039/df9511000035 ) M. M. Bursey, E. S. Wolfe. Org. Mass Spectrom. 1, 543 (1968). (http://dx.doi.org/10.1002/oms.1210010408 ) A. G. Harrison, C. D. Finney, J. A. Sherk. Org. Mass Spectrom. 5, 1313 (1971). (http://dx.doi.org/10.1002/oms.1210051109 )
From Definitions of Terms Relating to Mass Spectrometry (IUPAC Recommendations 2013); DOI: 10.1351/PAC-REC-06-04-06 © IUPAC 2013.
Index of Recommended Terms

---