Impact of Linker Engineering on the Catalytic Activity of Metal–Organic Frameworks Containing Pd(II)–Bipyridine Complexes

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• 作者：Xinle Li ; Ryan Van Zeeland ; Raghu V. Maligal-Ganesh ; Yuchen Pei ; Gregory Power ; Levi Stanley ; Wenyu Huang
• 刊名：ACS Catalysis
• 出版年：2016
• 出版时间：September 2, 2016
• 年：2016
• 卷：6
• 期：9
• 页码：6324-6328
• 全文大小：346K
• 年卷期：0
• ISSN：2155-5435

文摘

A series of mixed-linker bipyridyl metal–organic framework (MOF)-supported palladium(II) catalysts were used to elucidate the electronic and steric effects of linker substitution on the activity of these catalysts in the context of Suzuki–Miyaura cross-coupling reactions. m-6,6′-Me₂bpy-MOF-PdCl₂ exhibited 110- and 496-fold enhancements in activity compared to nonfunctionalized m-bpy-MOF-PdCl₂ and m-4,4′-Me₂bpy-MOF-PdCl₂, respectively. This result clearly demonstrates that the stereoelectronic properties of metal-binding linker units are critical to the activity of single-site organometallic catalysts in MOFs and highlights the importance of linker engineering in the design and development of efficient MOF catalysts.