Table 3. Results of the N2 sorption experiments at 77 K of M-CAU-30 (M = Zr, Hf). The micropore volume was calculated at p/p0 = 0.5. The theoretical specific surface areas were calculated using the program Materials Studio V5 and were each calculated for the pure framework and the framework with one mol MO2 per formula unit (framework + MO2).
| Zr-CAU-30 framework + ZrO2 | Zr-CAU-30 pure framework | Hf-CAU-30 framework + HfO2 | Hf-CAU-30 pure framework | |
| N2 (aBET), [m2 g–1] | 970 | 1070 | 910 | 1030 |
| a BET (theory) | 980 | 1180 | 890 | 1030 |
| N2 (Vm), [cm3 g–1] | 0.41 | 0.38 | ||
| H2O (upt.), [mg g–1] | 250 | 340 |