Chromium(III) terephthalate MIL-101 with molecular formula Cr3(OH)(H2O)2O[(O2C)C6H4(CO2)]3·nH2O (n ≈ 25) was selected as a parent framework for the synthesis of gold-functionalized MOF catalysts because (1) it has a large pore size (2.9 to 3.4 nm) and very large Langmuir surface...