ISSN:
1573-8388
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract The B/E linked scanning spectra of the M+, (M-15)+, and (M-OR1)+ ions and those of some other series have been investigated. The characteristic nature of the individual intensities of the metastable peaks (the magnitudes A) with the same R1 radicals for different groups of alkaloids has been shown for the spectra of the M+ and (M-15)+ ions. The reason for the quantitative differences of the B/E spectra of the (M-OH)+ ions from the spectra of the (M-OCH3)+ and (M-OAc)+ ions, consisting in the influence of alternative methods of eliminating an OH radical, has been found. It has been confirmed that the values of A of analogous transitions calculated from the B/E and MD spectra are close to one another. On the other hand, the values of the energy of the metastable transitions obtained by these two methods differ from one another by two orders of magnitude.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00629834
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