Protonation susceptibility and fragmentation capability of functional groups in chemical ionization mass spectrometry of simple bifunctional compounds. Semi-quantitative interpretation of spectra

Autor: Akira Tatematsu, Hideyuki Konishi, Kenji Kadoguchi, Naohito Takeda, Hisao Nakata
Rok vydání: 1993
Předmět:
Zdroj: Organic Mass Spectrometry. 28:67-70
ISSN: 1096-9888
0030-493X
DOI: 10.1002/oms.1210280203
Popis: Positive-ion, methane-mediated chemical ionization mass spectra were measured for simple bifunctional aromatic compounds of the type m-XCH 2 C 6 H 4 CH 2 Y, where X = NH 2 and N(CH 3 ) 2 , and Y = OH and OCH 3 . Essen tially only three peaks of ions, [MH] + , [MH − XH] + and [MH − YH] + , have appeared for each compound. Since the two functional groups XCH 2 − and YCH 2 − do not interact with each other after protonaton or after fragmentation, they are assumed to be protonated and to undergo fragmentations independently. The relative protonation susceptibility and fraction of fragmenting [MH] + can be estimated for each functional group in these compounds. A semi-quantitative interpretation of the observed spectra is presented
Databáze: OpenAIRE
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