Collisionally activated charge reversal of HCOCH2− and CH3COCH2− produces positive ions whose fragments differ from those of other [C2H3O]+ ions formed by fragmentation of positive molecular ions, including the [C2H3O]+ ions from 2,2‐dichlorethanol, considered formerly to have the HCOCH2+ structure. The fragmentations of the charge reversed ions are concordant with the RCOCH2+ structures. Least‐squares correlations of the collisional activation spectra [C2H3O]+ are probed as a useful guide to claiming similarity or dissimilarity of ionic structure.
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Lehman et al. (1983) studied this question.
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