An Isoreticular Series of Metal–Organic Frameworks with Dendritic Hexacarboxylate Ligands and Exceptionally High Gas-Uptake Capacity


  • This work was supported by the US Department of Energy (DE-FC36-07GO17033) and the Welch Foundation (A-1725). The microcrystal diffractions of PCN-68 and PCN-610 were carried out with the assistance of Yu-Sheng Chen at the Advanced Photon Source on beam line 15ID-B at ChemMatCARS Sector 15, which is principally supported by the National Science Foundation/Department of Energy under grant number CHE-0535644. Use of the Advanced Photon Source was supported by the US Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357.


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Holding gas: One of the isoreticular metal–organic frameworks (MOFs) that have been synthesized and characterized structurally, PCN-68 (see structure), has a Langmuir surface area of as high as 6033 m2 g−1. The MOFs also display excellent gas (H2, CH4, and CO2) adsorption capacity.