Versatile reactions on hydrophobic functionalization of metal-organic frameworks and anticorrosion application

Zn(ii) and Co(ii) coordination polymers based on semi-rigid bis-pyridyl-bis-amide and angular dicarboxylate ligands: synthesis, structures and properties

“…To inspect the hydrophobic properties, CPs 1–6 were activated by using post synthetic modification (PSM) 38 and their contact angles were measured (Fig. S26) †.…”

Introducing alkyl chains to realize the construction of superhydrophobic/superoleophilic MOFs and the transformation from three-dimensional to two-dimensional structure

“…When the WCA is greater than 150°, it is considered a superhydrophobic material. 7 At this point, the water droplets partially stay on the air cushion so the adhesion is low. In general, the surface roughness and surface energy determine the wettability of materials.…”

Fine Tuning the Hydrophobicity of a New Three-Dimensional Cu2+ MOF through Single Crystal Coordinating Ligand Exchange Transformations

“…One method to enhance the hydrolytic stability of MOFs is to increase the hydrophobicity of their pore surface and/or external crystal surface. − Such hydrophobic MOFs have attracted significant interest not only because of their stability in water but also due to their diverse potential applications including humid CO 2 capture, − alcohol/water, organic molecules/water and oil/water separations, , removal of pollutants from air or water, , substrate-selective catalysis, and anticorrosion/self-cleaning coatings. , As a result of this interest, several synthetic methods have been reported that lead to MOFs with enhanced hydrophobicity. These synthetic methods include the de novo synthesis of MOFs using ligands containing hydrophobic functional groups ,,,,,− ,, and also postsynthesis modifications (PSM) ,,,− of well–known MOFs. Some examples of the latter include external coating with octadecylamine on MIL-101­(Cr), UiO-66, HKUST-1, and ZIF-67 MOFs and functionalization with aliphatic alkane groups in IRMOF-3 and MIL-53­(Al)–NH 2 through amide bond formation upon reaction of the −NH 2 group of the 2-amino-1,4-benzenedicarboxylate ligand with various alkyl anhydrides .…”