Two porous metal–organic frameworks containing zinc–calcium clusters and calcium cluster chains†
Abstract
A two-dimensional metal–organic framework (MOF) containing both Zn(II) and Ca(II) centres and a three-dimensional MOF containing only Ca(II) centres have the largest surface areas (BET 1560 and 914 m2 g−1, respectively) among the reported Ca-based MOFs and also exhibit high gas uptake up to 1 bar for H2 at 77 K and CO2 at 298 K.