Affiliation:
1. Poznań University of Technology, Institute of Chemistry, Piotrowo 3, 60-965 Poznań, Poland
Abstract
The complexes of cytidine (C) with Ag+ and adenosine (A), guanosine (G), inosine (In) and caffeine (Caf) were studied by electrospray ionization mass spectrometry (ESI-MS). Both collision-induced dissociation (CID) “in-source” and CID MS/MS experiments were performed. The stability of [C+G+Ag]+ and [C+In+Ag]+ ions in the gas phase was found to be much higher than that of [C+A+Ag]+ and [C+Caf+Ag]+ ions. It is reasonable to conclude that guanosine and inosine form bidentate complexes with the silver cation, by the N7 atom and O=C6 oxygen atom, whereas adenosine and caffeine form monodentate complexes, by the N3 atom of adenine and the N9 atom of caffeine.
Subject
Spectroscopy,Atomic and Molecular Physics, and Optics,General Medicine
Cited by
3 articles.
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