Microporous heptazine functionalized (3,24)-connected rht-metal-organic framework: Synthesis, structure, and gas sorption analysis

Here we synthesized the highly porous rht-MOF-9 as the first example of an rht-MOF having a polycyclic central core. This material was synthesized from a predesigned polyheterocyclic nitrogen-rich hexacarboxylate (tri-isophthalate) ligand, which serves as the 3-connected, trigonal molecular building block (MBB). When reacted under the proper conditions, this ligand, having three coplanar isophthalic acid moieties, codes for the in situ formation of the targeted 24-connected copper-based supermolecular building block (SBB) having rhombicuboctahedral geometry. This combination of a 24-connected building block linked through 3-connected nodes results in a novel material with the singular rht topology. The rht-MOF-9 compound exhibits promising H2 and CO2 adsorption properties in comparison to previously reported rht-MOFs. © 2014 American Chemical Society.

Luebke, R., Weseliński, Ł. J., Belmabkhout, Y., Chen, Z., Wojtas, Ł., & Eddaoudi, M. (2014). Microporous Heptazine Functionalized (3,24)-Connected rht-Metal–Organic Framework: Synthesis, Structure, and Gas Sorption Analysis. Crystal Growth & Design, 14(2), 414–418. doi:10.1021/cg401802s

Authors gratefully acknowledge KAUST for funding.

American Chemical Society (ACS)

Crystal Growth & Design


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