Aryl‐Phosphonate Lanthanide Complexes and Their Fluorinated Derivatives: Investigation of Their Unusual Relaxometric Behavior and Potential Application as Dual Frequency 1 H/ 19 F MRI Probes

A series of low molecular weight lanthanide complexes were developed that have high 1 H longitudinal relaxivities ( r 1 ) and the potential to be used as dual frequency 1 H and 19 F MR probes. Their behavior was investigated in more detail through relaxometry, pH‐potentiometry, luminescence, and mul...

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Veröffentlicht in:Chemistry : a European journal 2013-08, Vol.19 (35), p.11644-11660
Hauptverfasser: Placidi, Matteo P., Botta, Mauro, Kálmán, Ferenc K., Hagberg, Gisela E., Baranyai, Zsolt, Krenzer, Andreas, Rogerson, Alexandria K., Tóth, Imre, Logothetis, Nikos K., Angelovski, Goran
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Sprache:eng
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Zusammenfassung:A series of low molecular weight lanthanide complexes were developed that have high 1 H longitudinal relaxivities ( r 1 ) and the potential to be used as dual frequency 1 H and 19 F MR probes. Their behavior was investigated in more detail through relaxometry, pH‐potentiometry, luminescence, and multinuclear NMR spectroscopy. Fitting of the 1 H NMRD and 17 O NMR profiles demonstrated a very short water residence lifetime (
ISSN:0947-6539
1521-3765
DOI:10.1002/chem.201300763