Reticular Chemistry at Its Best: Directed Assembly of Hexagonal Building Units into the Awaited Metal-Organic Framework with the Intricate Polybenzene Topology, pbz-MOF
Trikalitis, Pantelis N.
KAUST DepartmentAdvanced Membranes and Porous Materials Research Center
Functional Materials Design, Discovery and Development (FMD3)
Physical Sciences and Engineering (PSE) Division
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AbstractThe ability to direct the assembly of hexagonal building units offers great prospective to construct the awaited and looked-for hypothetical polybenzene (pbz) or “cubic graphite” structure, described 70 years ago. Here, we demonstrate the successful use of reticular chemistry as an appropriate strategy for the design and deliberate construction of a zirconium-based metal–organic framework (MOF) with the intricate pbz underlying net topology. The judicious selection of the perquisite hexagonal building units, six connected organic and inorganic building blocks, allowed the formation of the pbz-MOF-1, the first example of a Zr(IV)-based MOF with pbz topology. Prominently, pbz-MOF-1 is highly porous, with associated pore size and pore volume of 13 Å and 0.99 cm3 g–1, respectively, and offers high gravimetric and volumetric methane storage capacities (0.23 g g–1 and 210.4 cm3 (STP) cm–3 at 80 bar). Notably, the pbz-MOF-1 pore system permits the attainment of one of the highest CH4 adsorbed phase density enhancements at high pressures (0.15 and 0.21 g cm–3 at 35 and 65 bar, respectively) as compared to benchmark microporous MOFs.
CitationAlezi D, Spanopoulos I, Tsangarakis C, Shkurenko A, Adil K, et al. (2016) Reticular Chemistry at Its Best: Directed Assembly of Hexagonal Building Units into the Awaited Metal-Organic Framework with the Intricate Polybenzene Topology, pbz-MOF. Journal of the American Chemical Society 138: 12767–12770. Available: http://dx.doi.org/10.1021/jacs.6b08176.
SponsorsThis research has been cofinanced by the European Union and Greek national funds through the Operational Program “Education and Lifelong Learning” of the National Strategic Reference Framework, Research Funding Program: ARISTEIA II - 4862. Financial support by King Abdullah University of Science and Technology is gratefully acknowledged.
PublisherAmerican Chemical Society (ACS)
Is Supplemented ByAlezi, D., Spanopoulos, I., Tsangarakis, C., Shkurenko, A., Adil, K., Belmabkhout, Y., … Trikalitis, P. N. (2016). CCDC 1497835: Experimental Crystal Structure Determination [Data set]. Cambridge Crystallographic Data Centre. https://doi.org/10.5517/ccdc.csd.cc1m8m8s