(figure represented) MOF for more gas storage: A new mesoporous metal-organic framework (MOF) with extremely high adsorption capacities for methane, H₂, and n-butane is prepared from the reaction of H ₃(btb), H₂(2,6-ndc), and zinc nitrate (btb = benzene-1,3,5-tribenzoate; 2,6ndc = 2,6-naphthalenedicarboxylate). The main structural motif is a dodecahedron formed from 12 Zn₄O⁶⁺ clusters, four 2,6-ndc, and eight btb linkers (see picture; green: Zn ₄O⁶⁺, gray: C, red: O; the red sphere illustrates the pore volume).