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Title: Defining the Proton Topology of the Zr6 -Based Metal–Organic Framework NU-1000

Journal Article · · Journal of Physical Chemistry Letters
DOI:https://doi.org/10.1021/jz501899j· OSTI ID:1458981
 [1];  [2];  [1];  [1];  [1];  [2];  [3];  [1]
  1. Univ. of Minnesota, Minneapolis, MN (United States)
  2. Northwestern Univ., Evanston, IL (United States)
  3. Northwestern Univ., Evanston, IL (United States); King Abdulaziz Univ., Jeddah (Saudi Arabia)

Metal–organic frameworks (MOFs) constructed from Zr6-based nodes have recently received considerable attention given their exceptional thermal, chemical, and mechanical stability. Because of this, the structural diversity of Zr6-based MOFs has expanded considerably and in turn given rise to difficulty in their precise characterization. In particular it has been difficult to assign precisely where protons (needed for charge balance) reside on some Zr6-based nodes. Elucidating the precise proton topologies in Zr6-based MOFs will have wide ranging implications in defining their chemical reactivity, acid/base characteristics, conductivity and chemical catalysis. Here we have used a combined quantum mechanical and experimental approach to elucidate the precise proton topology of the Zr6-based framework NU-1000. Lastly, our data indicate that a mixed node topology, [Zr63–O)43-OH)4(OH)4(OH2)4]8+, is preferred and simultaneously rules out five alternative node topologies.

Research Organization:
Univ. of Minnesota, Minneapolis, MN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
FG02-12ER16362; SC0008688
OSTI ID:
1458981
Journal Information:
Journal of Physical Chemistry Letters, Vol. 5, Issue 21; ISSN 1948-7185
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 206 works
Citation information provided by
Web of Science

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Adding to the Arsenal of Zirconium-Based Metal-Organic Frameworks: the Topology as a Platform for Solvent-Assisted Metal Incorporation : Adding to the Arsenal of Zirconium-Based Metal-Organic Frameworks: the Topology as a Platform for Solvent-Assisted Metal Incorporation journal July 2016
Non-3d Metal Modulation of a Cobalt Imidazolate Framework for Excellent Electrocatalytic Oxygen Evolution in Neutral Media journal December 2018
Modulator-Controlled Synthesis of Microporous STA-26, an Interpenetrated 8,3-Connected Zirconium MOF with the the-i Topology, and its Reversible Lattice Shift journal March 2018
Scalable synthesis and post-modification of a mesoporous metal-organic framework called NU-1000 journal December 2015
MOFs vs. zeolites: carbonyl activation with M( iv ) catalytic sites journal January 2017
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