Table 1.
Compound | Conc. in NMR tube (mM) | Measured enhancement | Measured T1 (s) | Chemical shift (ppm) |
---|---|---|---|---|
YCl3 | 15 | 246 | 620 | 0 (ref) |
Y(DTPA)2− | 7.6 | 566 | 451 | 76 |
Y(DOTA)− | 7.9 | 1527 | 499 | 109 |
Y(DOTP)5− | 10 | 298 | 264 | 141 |
Y(DOTP)5− | 5 | 1042 | 277 | 141 |