A highly porous metal–organic framework Cu2(BBCDC) (BBCDC = 9,9′-([1,1′-![[b with combining low line]](http://www.rsc.org/images/entities/char_0062_0332.gif)
iphenyl]-4,4′-diyl)is(9H-![[c with combining low line]](http://www.rsc.org/images/entities/char_0063_0332.gif)
arbazole-3,6-![[d with combining low line]](http://www.rsc.org/images/entities/char_0064_0332.gif)
iarboxylate) (DUT-49) with a specific surface area of 5476 m2 g−1, a pore volume of 2.91 cm3 g−1, a H2 excess uptake of 80 mg g−1 (77 K, 50 bar), a CO2 excess uptake of 2.01 g g−1 (298 K, 50 bar) and an exceptionally high excess methane storage capacity of 308 mg g−1 (298 K, 110 bar) was obtained using an extended tetratopic linker.
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