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400 cycles of water uptake for Ni2Cl2BTDD (top) and Ni2Br2BTDD (bottom), switching from 0 mbar of H2O to 18 mbar of H2O approximately every 15 min, with a variable phase delay period to switch between pressures. After 200 cycles, each sample was reactivated at 70 °C for 3 h.
