1D Metal Mediated Hydrogen Bonded Rods with Rich Phenyl Groups for Highly Efficient Oil Removal.

In this work, a novel 1D metal-mediated hydrogen-bonded framework with rich phenyl groups is first synthesized employing Co2+ and dibenzoylmethane (DBM) as precursors, which are named HOF-Co-DBM and exhibit exceptional thermal stability, excellent chemical durability, and super hydrophobicity. These distinctive properties can be attributed to the high density, robust Co─O coordination bonds, and the presence of strong hydrogen bonds (O─H─O─C) characterized by short bond distances, which contribute to its close-packed structure. Additionally, the benzene rings flanking the framework further enhance its hydrophobicity. The HOF-Co-DBM is subsequently integrated into a polyurethane (PU) sponge, resulting in exceptional oil removal performance. This study demonstrates the potential for preparing ultra-stable and superhydrophobic hydrogen-bonded organic framework materials with a wide range of applications.