Mesoporous Metal–Organic Framework with Rare etb Topology for Hydrogen Storage and Dye Assembly

More holes than Swiss cheese: A new MOF with the largest reported 1D hexagonal nanotube-like channels of 24.5 Å×27.9 Å and rare etb topology has been synthesized (see picture). It exhibits good fluorescence properties and substantial hydrogen uptake. For the first time, the compound was assembled with Rh6G dye molecules, and the product showed favorable temperature-dependent luminescent properties.