Direct Synthesis of an Iridium(III) Bipyridine Metal-Organic Framework as a Heterogeneous Catalyst for Aerobic Alcohol Oxidation

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• 作者：Sara Abednatanzi ; Parviz Gohari Derakhshandeh ; Dr. Alireza Abbasi ; Prof. Pascal Van Der Voort and Dr. Karen Leus
• 刊名：ChemCatChem
• 出版年：2016
• 出版时间：December 7, 2016
• 年：2016
• 卷：8
• 期：23
• 页码：3672-3679
• 全文大小：1262K
• ISSN：1867-3899

文摘

The heterogenization of an Ir^III complex is accomplished by the modification of a nanoporous Ga-based metal–organic framework (MOF), denoted as COMOC-4. The introduction of the Ir complex was performed successfully through two different strategies (post- and prefunctionalization). The obtained Ir-based MOF materials were compared in terms of the Ir loading, specific surface area, and crystallinity. In this case, the prefunctionalization approach was a powerful way to obtain a high Ir loading and surface area and preserve the formation of the desired MOF topology. The Ir^IIICp*Cl@COMOC-4 (Cp*=1,2,3,4,5-pentamethylcyclopentadienyl) material exhibits a good catalytic performance in the oxidation of benzyl alcohol using O₂ as a clean oxidant. Furthermore, the stability and reusability were examined and showed that the Ir^IIICp*Cl@COMOC-4 material could be reused for at least four cycles with no decrease in activity and selectivity. Additionally, no significant leaching of the Ir and Ga species or loss of the crystallinity was observed.