Table 4. NMR parameters obtained from the 17O MQMAS NMR spectra shown in Fig. 9 .
| O species | δ iso (ppm) | P Q/MHz |
| Calcined Sc 2 (BDC) 3 | ||
| Carboxylate | 273(3) | 8.1(3) |
| Steamed (hydrated) Sc MIL-53 | ||
| Carboxylate | 272(3) | 8.1(3) |
| Hydroxyl | 143(4) | 6.0(4) |
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