Relaxometric study of copper [15]metallacrown-5 gadolinium complexes derived from alpha-aminohydroxamic acids

T.N. Parac-Vogt, A. Pacco, Peter Nockemann, S. Laurent, R.N. Muller, M. Wickleder, G. Meyer, L.V. Elst, K. Binnemans

Research output: Contribution to journalArticlepeer-review

32 Citations (Scopus)

Abstract

Proton nuclear magnetic relaxation dispersion (NMRD) profiles were recorded between 0.24 mT and 1.4 T for lanthanum(III)- and gadolinium(III)-containing [15]metallacrown-5 complexes derived from alpha-aminohydroxamic acids and with copper(n) as the ring metal. The influence of the different R-groups on the proton relaxivity was investigated, and a linear relationship between the relaxivity and the molecular mass of the metallacrown complex was found. The selectivity of the metallacrown complexes was tested by transmetalation experiments with zinc(n) ions. The crystal structure of the copper [15]metallacrown-5 gadolinium complex with glycine hydroximate ligands is reported.
Original languageEnglish
Pages (from-to)204-210
Number of pages7
JournalChemistry-a European Journal
Volume12
Issue number1
DOIs
Publication statusPublished - 16 Dec 2006

ASJC Scopus subject areas

  • Chemistry(all)

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