Table of Contents
International Journal of Spectroscopy
Volume 2012, Article ID 847676, 8 pages
Research Article

Gas Chromatography Electron Ionization Mass Spectral Analysis of Thio Analogues of Pyrimidine Bases: 5-Bromo-2,4-di-o-(m- and p-) chloro- (bromo-)benzylthiouracils and 6-methyluracils

Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznań, Poland

Received 14 July 2011; Accepted 30 September 2011

Academic Editor: Hans Riesen

Copyright © 2012 G. Bartkowiak et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Supplementary Material

Figure I presents B/E = const linked scan spectrum of precursor ion a C19H15N2S279Br3, m/z 572, chosen from the molecular ion region of compound 12. The spectrum shows daughter ions created through the EI mass spectral fragmentation of precursor ion a

Figure II presents a comparison of three GC-EI mass spectra of isomeric 5-bromo-2,4-di-(bromobenzylthio)uracils 4-6, namely:

Isomer ortho, that is, 5-bromo-2,4-di-(ortho-bromobenzylthio)uracil 4, retention time 45.71 min

Isomer meta, that is, 5-bromo-2,4-di-(meta-bromobenzylthio)uracil 5, retention time 47.66 min

Isomer para, that is, 5-bromo-2,4-di-(para-bromobenzylthio)uracil 6, retention time 53.50 min.

  1. Supplementary Material