NMR Evidence of a Long Exchange Lifetime for the Coordinated Water in Ln(III)-Bis(methyl amide)-DTPA Complexes (Ln = Gd, Dy)

@inproceedings{Aime1994NMREO,
  title={NMR Evidence of a Long Exchange Lifetime for the Coordinated Water in Ln(III)-Bis(methyl amide)-DTPA Complexes (Ln = Gd, Dy)},
  author={Silvio Aime and Mauro Botta and Mauro Fasano and Silvia Paoletti and Pier Lucio Anelli and F. Uggeri and Mario Virtuani},
  year={1994}
}
The water proton longitudinal relaxation rate for Gd-BMA-DTPA was studied at various temperatures and under varied magnetic fields. It was found that a correlation exists between the residence lifetime {tau}{sub M} of the coordinated water molecule in the coordination site on the metal chelate. The Gd(III) result was confirmed by related studies for Dy(III).