Stability and mode of coordination complexes formed in the silver(i)/nucleoside systems

Complexes of silver(i) with nucleosides (adenosine, cytidine, uridine and thymidine) have been studied using potentiometric, spectral and theoretical methods. Stability constants of the complexes as well as their coordination modes have been determined. Results of the equilibrium studies have provid...

Full description

Saved in:
Bibliographic Details
Published in:New journal of chemistry 2011-01, Vol.35 (8), p.1672-1677
Main Authors: Jastrzab, Renata, Hnatejko, Zbigniew, Runka, Tomasz, Odani, Akira, Lomozik, Lechoslaw
Format: Article
Language:English
Subjects:
Adenosine
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Complexes of silver(i) with nucleosides (adenosine, cytidine, uridine and thymidine) have been studied using potentiometric, spectral and theoretical methods. Stability constants of the complexes as well as their coordination modes have been determined. Results of the equilibrium studies have provided evidence for the formation of only ML and ML(OH) type complexes. The basicity of nucleosides was found to substantially influence the stability constant of the ML type complexes. Spectral data have allowed us to identify the sites of silver attachment to the nucleoside. Additionally a new silver-adenosine complex of stoichiometry Ag(Ado)(OH) was prepared from aqueous solution at pH close to 6. Its characterization and comparison with complexes formed in solution are described. The structures of complexes formed in solution and in solid state were confirmed through computational calculations (DFT/B3LYP: lanL2DZ theoretical procedure).
ISSN:1144-0546
1369-9261
DOI:10.1039/c1nj20230h