title: NMR and chiroptical examination of the diastereoisomers of (S)-Eu-EOB-DTPA.
abstract: The solution structure of the diastereoisomers of (S)-Eu--EOB--DTPA has been analysed by (1)H NMR, CD and CPL spectroscopy. Two major species exist which possess very similar (1)H NMR paramagnetic shifts and emission spectra, consistent with a 9-coordinate structure involving one bound water. Circularly polarised luminescence data are consistent with a common Lambda-helicity for each isomer; the isomers differ only in the absolute configuration of the central nitrogen atom.
authors.affiliation: Department of Chemistry, University of Durham, South Road, Durham, UK DH1 3LE.
authors.forename: Nicola C
authors.initials: NC
authors.lastname: Thompson
authors.forename: David
authors.initials: D
authors.lastname: Parker
authors.forename: Heribert
authors.initials: H
authors.lastname: Schmitt-Willich
authors.forename: Detlev
authors.initials: D
authors.lastname: Sulzle
authors.forename: Gilles
authors.initials: G
authors.lastname: Muller
authors.forename: James P
authors.initials: JP
authors.lastname: Riehl