ISSN:
1076-5174
Keywords:
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
The production and detection of doubly charged organic cations were studied using a previously unreported approach - electrospray ionization coupled with Fourier transform ion cyclotron resonance mass spectrometry. Owing to its ultra-high mass resolution, accurate and stable mass calibration, multiple stages of collisionally activated dissociation (CAD) allowing tandem mass spectrometry and extremely long ion storage times (〉 1 min), this technique has proven to be a powerful method for the detection and study of doubly charged organic compounds. CAD studies were used for the identification of ion-molecule reactions and for the investigation of the propensity towards gas-phase SN1 and SN2 reaction pathways. To date exclusively SN1-type reactions in the gas phase have been detected. Three doubly charged pyridinium salts were chosen as model compounds for this study.
Additional Material:
3 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/jms.1190301110
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