Comparative investigation of the interaction of Zn(II), Cd(II), Ag(I) and Pb(II) with dibenzo-substituted macrocyclic ligands incorporating both symmetrically and unsymmetrically arranged N, O and S donors: synthetic, solution and X-ray studies

Vasilescu, Ioana M., Bourne, David J., Clegg, Jack K., Li, Feng, Lindoy, Leonard F. and Meehan, George V. (2012) Comparative investigation of the interaction of Zn(II), Cd(II), Ag(I) and Pb(II) with dibenzo-substituted macrocyclic ligands incorporating both symmetrically and unsymmetrically arranged N, O and S donors: synthetic, solution and X-ray studies. Supramolecular Chemistry, 24 8: 572–584-584. doi:10.1080/10610278.2012.688130


Author Vasilescu, Ioana M.
Bourne, David J.
Clegg, Jack K.
Li, Feng
Lindoy, Leonard F.
Meehan, George V.
Title Comparative investigation of the interaction of Zn(II), Cd(II), Ag(I) and Pb(II) with dibenzo-substituted macrocyclic ligands incorporating both symmetrically and unsymmetrically arranged N, O and S donors: synthetic, solution and X-ray studies
Journal name Supramolecular Chemistry   Check publisher's open access policy
ISSN 1061-0278
1029-0478
Publication date 2012-08
Sub-type Article (original research)
DOI 10.1080/10610278.2012.688130
Volume 24
Issue 8
Start page 572–584
End page 584
Total pages 13
Place of publication Colchester, Essex, United Kingdom
Publisher Taylor & Francis
Collection year 2013
Language eng
Formatted abstract
A comparison of the interaction of Zn(II), Cd(II), Ag(I) and Pb(II) with a matrix of 18, 17-membered, dibenzo-substituted macrocyclic ligands (1–18) incorporating nitrogen, oxygen and/or sulfur heteroatom sites that share the same carbon backbone is reported. Potentiometric log K data for complexes of these metals with 5, 6, 8 and 9 incorporating unsymmetric arrangements of their donor sets were obtained and the results compared with previously determined stability data for the remaining symmetrical and unsymmetrical ligand complexes forming the above matrix. Structure–function relationships underlying the relative magnitudes of the respective log K values are discussed, with emphasis given to the influence of both the donor atom set and the donor atom sequence on the nature of the resulting complexes. The X-ray structures of [CdL(NO3)] (NO3)·CH3CH2OH (L = 4, SN4 donor set), [CdL(NO3)2]·CH3OH (L = 7, ON4 donor set), [AgL]PF6 (L = 4, SN4 donor set) and [AgL]PF6 (L = 9, OSN3 donor set) are presented along with that of the metal-free diprotonated nitrate salt (LH2)(NO3)2 (L = 6, S2N3 donor set).
Keyword Macrocycle
Stability constants
Zinc(II)
Cadmium(II)
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Special Issue: Seventh International Symposium of Macrocyclic and Supramolecular Chemistry (ISMSC-7)

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2013 Collection
School of Chemistry and Molecular Biosciences
 
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Created: Fri, 12 Oct 2012, 11:02:40 EST by Mrs Louise Nimwegen on behalf of School of Chemistry & Molecular Biosciences