Citation: Yi Min SHE, Jun Hua WEI, Ya Ping TU, Shu Ying LIU. Specific Mass Spectrometric Fragmentations from the Dissociation of Intermediate Ion-Neutral Complexes[J]. Chinese Chemical Letters, ;1998, 9(1): 93-97.
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It is reported that two kinds of specific mass spectrometric fragmentations are generated from dissociations of the intermediates of both the ion-neutral complex and the proton-bound complex. Collision-induced dissociation, isotopic labelling, and semi-empirical AMI calculations were used to investigate the formation mechanism of the ion of m/z 139 from ionized tetrahydroimi-dazole-substituted methylene β-diketones and the unimolecular fragmentations pathway of 3-phenyl-1-butyn-3-ol upon electron impact.
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