Direct detection of17O in [Gd(DOTA)]-by NMR spectroscopy

Luca Fusaro, Girolamo Casella, Alessandro Bagno

Résultats de recherche: Contribution à un journal/une revueArticleRevue par des pairs

Résumé

The 17O NMR spectrum of the non-coordinated carboxyl oxygen in the GdIII-DOTA (DOTA = tetraazacyclododecanetetraacetic acid) complex has been observed experimentally. Its line width is essentially unaffected by paramagnetic relaxation due to gadolinium, and is only affected by the quadrupole pathway. The results are supported by the relevant parameters (hyperfine and quadrupole coupling constants) calculated by relativistic DFT methods. This finding opens up new avenues for investigating the structure and reactivity of paramagnetic GdIII complexes used as contrast agents in magnetic resonance imaging.

langue originaleAnglais
Pages (de - à)1955-1960
Nombre de pages6
journalChemistry: A European Journal
Volume21
Numéro de publication5
Les DOIs
Etat de la publicationPublié - 26 janv. 2015

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