https://www.selleckchem.com/pr....oducts/gs-441524.htm
In comparison, SO2, a strong polar molecule, triggers the gate-opening effect in all three MOFs. Interestingly, a shape memory effect is observed for Cu(4-PyC)2 during the second SO2 sorption cycle. When comparing the different gate-opening pressures of each gas, we observed that the structural flexibility of the three frameworks is highly sensitive to the chemical hardness of the Lewis acidic metal ions (Mg2+ Mn2+ Cu2+). As a result, the gate opening behavior is observed at lower pressures for the MOFs containing weaker M-N
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