“…While the pore size of this MOF is approximately 1.1 nm as determined from crystallographic data, the 1D pore system within the channels lacks primary adsorption sites that have a strong affinity for carbon dioxide and water molecules [15] . Specifically, in terms of water sorption, compared to previously reported state‐of‐art water harvesting rod MOFs, [2a,8a,b,9b,16] MOF‐419 has hydroxamate groups (−CONHOH) and formate ligands (HCOO) in place of carboxylic groups (−COOH) and bridging hydroxy groups (−OH), respectively, which are considered binding sites for water molecules. As suggested by the crystal structure of MOF‐419 (Figure 1d), potential primary adsorption sites such as −NH and −COO are not easily accessible by those water molecules passing through the channel, as their geometry relation is unlike the one of hydrophilic atoms and hydroxyl groups in water harvesting MOFs such as MOF‐303.…”