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Measuring and Modulating Substrate Confinement during Nitrogen-Atom Transfer in a Ru2-Based Metal-Organic Framework

Journal Article · · Journal of the American Chemical Society
DOI:https://doi.org/10.1021/jacs.9b09620· OSTI ID:2433867
The porosity and synthetic tunability of metalorganic frameworks (MOFs) motivate interest in application of these materials as designer heterogeneous catalysts. While understanding substrate mobility in these materials is critical to the rational development of highly active catalyst platforms, experimental data are rarely available. Here we demonstrate kinetic isotope effect (KIE) analysis enables direct evaluation of the extent of substrate confinement as a function of material mesoporosity. Further, we provide evidence that suggests substrate confinement within a microporous Ru2-based MOF gives rise to quantum tunneling during interstitial C–H amination. Here, the reported data provide the first evidence for tunneling during interstitial MOF chemistry and illustrate an experimental strategy to evaluate the impact of material structure on substrate mobility in porous catalysts.
Research Organization:
Texas A & M University, College Station, TX (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); Welch Foundation
Grant/Contract Number:
SC0018977
OSTI ID:
2433867
Alternate ID(s):
OSTI ID: 1803483
Journal Information:
Journal of the American Chemical Society, Journal Name: Journal of the American Chemical Society Journal Issue: 49 Vol. 141; ISSN 0002-7863
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

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