Abstract
AbstractA new three‐dimensional (3D) Zn‐based metal–organic framework (Zn‐MOF) with 1,3,5‐benzenetribenzoate (BTB3−), [Zn4O(BTB)2(0.5H2O)4]·H2O·8DEF (1), has been prepared using the reaction between Zn(NO3)2·6H2O and a tritopic bridging ligand 1,3,5‐benzenetribenzoic acid (H3BTB) in the presence of a potentially ditopic bridging ligand 3,3′‐terphenyldicarboxylic acid (H2TPDC). Interestingly, TPDC2− ligand did not incorporate into the resulting Zn‐MOF, and the title compound was not formed in the absence of TPDC2− ligand during the synthesis. After the solvate molecules were removed, Zn‐MOF 1 exhibited a doubly interpenetrated 3D ant net with a large solvent accessible void. The powder x‐ray diffraction pattern of the evacuated 1 did not change significantly compared to that of the as‐prepared 1, thus indicating that 1 has permanent porosity. Gas sorption analyses were performed to investigate the sorption abilities of the evacuated 1 by using several different gases at suitable temperatures: N2, CO2, H2, and CH4.
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