Lee T, Cheng T, Ou M, Chang CA, Liu G, Wang Y. Physicochemical characterization of the dimeric lanthanide complexes [en{Ln(DO3A)(H2O)}2] and [pi{Ln(DTTA)(H2O)}2]2−: a variable‐temperature 17O NMR study. Magnetic Reson in Chemistry. 2004 Jan 28;42(3):329–36. doi: 10.1002/mrc.1315.
Physicochemical characterization of the dimeric lanthanide complexes [en{Ln(DO3A)(H2O)}2] and [pi{Ln(DTTA)(H2O)}2]2−: a variable‐temperature 17O NMR study