Journal
ACS CATALYSIS
Volume 6, Issue 9, Pages 6324-6328Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acscatal.6b01753
Keywords
isoreticular metal-organic frameworks; single-site catalyst; heterogeneous catalysis; bipyridyl linker; structure-activity relationship; Suzuki-Miyaura cross-coupling
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Funding
- Ames Laboratory
- Iowa State University
- U.S. Department of Energy [DE-AC02-07CH11358]
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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 60. cross-coupling reactions. m-6,6'-Me(2)bpy-MOF-PdCl2 exhibited 110- and 496-fold enhancements in activity compared to nonfunctionalized m-bpy-MOF-PdCl2 and m-4,4'-Me(2)bpy-MOE-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.
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