metal-adeninate vertices for the construction ofan exceptionally porous metal-organic framework

摘要

metal-organic frameworks comprising metal-carboxylate cluster vertices and long, branchedorganic linkers are the most porous materials known, and therefore have attracted tremendousattention for many applications, including gas storage, separations, catalysis and drug delivery.To increase metal-organic framework porosity, the size and complexity of linkers has increased.Here we present a promising alternative strategy for constructing mesoporous metal-organicframeworks that addresses the size of the vertex rather than the length of the organic linker.This approach uses large metal-biomolecule clusters, in particular zinc-adeninate buildingunits, as vertices to construct bio-moF-100, an exclusively mesoporous metal-organicframework. Bio-moF-100 exhibits a high surface area (4,300m2g~(-1)), one of the lowest crystaldensities (0.302 g cm~(-3)) and the largest metal-organic framework pore volume reported todate (4.3cm3g~(-1)).