Metal–organic frameworks utilising an interlocked, hexadentate linker containing a tetra-carboxylate axle and a bis(pyridine) wheel

2017 ◽  
Vol 46 (8) ◽  
pp. 2462-2470 ◽  
Author(s):  
Ghazale Gholami ◽  
Giorgio Baggi ◽  
Kelong Zhu ◽  
Stephen J. Loeb
Keyword(s):  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Framework Materials ◽  
Metal Organic ◽  
Organic Framework

A mechanically interlocked ligand which combines an H-shaped axle containing four terminal 3-carboxyphenyl groups and a macrocyclic wheel with two 4-pyridyl groups was used to create Zn(ii) and Cu(ii) metal–organic framework materials that contain unique frameworks threaded solely due to the interpenetrated nature of the linker.

Metal–organic frameworks for radionuclide sequestration from aqueous solution: a brief overview and outlook

2017 ◽  
Vol 46 (47) ◽  
pp. 16381-16386 ◽  
Author(s):  
Chengliang Xiao ◽  
Mark A. Silver ◽  
Shuao Wang
Keyword(s):  
Aqueous Solution ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Framework Materials ◽  
Metal Organic ◽  
Organic Framework

137Cs, 90Sr, 238U, 79Se, and 99Tc sequestrations from aqueous solution by metal–organic framework materials are summarized in this Frontier article.

Novel metal–organic framework materials: blends, liquids, glasses and crystal–glass composites

2019 ◽  
Vol 55 (60) ◽  
pp. 8705-8715 ◽  
Author(s):  
Joshua M. Tuffnell ◽  
Christopher W. Ashling ◽  
Jingwei Hou ◽  
Shichun Li ◽  
Louis Longley ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Crystal Glass ◽  
Zeolitic Imidazolate Framework ◽  
Feature Article ◽  
Glass Composites ◽  
Framework Materials ◽  
Recent Advances ◽  
Metal Organic ◽  
Organic Framework

This Feature Article reviews a range of amorphisation mechanisms of Metal–Organic Frameworks (MOFs) and presents recent advances to produce novel MOF materials including porous MOF glasses, MOF crystal–glass composites, flux melted MOF glasses and blended zeolitic imidazolate framework glasses.

Excellent photoreduction performance of Cr(vi) over (WO4)2−-doped metal organic framework materials

2020 ◽  
Vol 44 (47) ◽  
pp. 20704-20714
Author(s):  
Xinyun Zhao ◽  
Lamei Wu ◽  
Xi Chen ◽  
Juncheng Hu ◽  
Tsung-hsueh Wu ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Framework Materials ◽  
Metal Organic ◽  
Organic Framework

Negatively charged (WO4)2− anions doped into 2D layered metal organic frameworks bismuth terephthalate provides a valuable strategy for excellent photoreduction of Cr(vi).

Water interactions in metal organic frameworks

CrystEngComm ◽  
2015 ◽  
Vol 17 (2) ◽  
pp. 247-260 ◽  
Author(s):  
Kui Tan ◽  
Nour Nijem ◽  
Yuzhi Gao ◽  
Sebastian Zuluaga ◽  
Jing Li ◽  
...  
Keyword(s):  
Structural Variation ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Framework Materials ◽  
Metal Organic ◽  
Insight Into ◽  
Organic Framework

Insight into the structural variation of metal organic framework materials upon hydration.

Structure, characterization, and catalytic properties of open-metal sites in metal organic frameworks

2019 ◽  
Vol 4 (2) ◽  
pp. 207-222 ◽  
Author(s):  
Jacklyn N. Hall ◽  
Praveen Bollini
Keyword(s):  
Catalytic Properties ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Structure Characterization ◽  
Current Understanding ◽  
Framework Materials ◽  
Open Metal Sites ◽  
Metal Organic ◽  
Organic Framework

This review provides an overview of the current understanding of structure–catalytic properties of open-metal sites in metal organic framework materials.

Magnetic Ordering via Itinerant Ferromagnetism in a Metal-Organic Framework

2020 ◽  
Author(s):  
Jesse Park ◽  
Brianna Collins ◽  
Lucy Darago ◽  
Tomce Runcevski ◽  
Michael Aubrey ◽  
...  
Keyword(s):  
Charge Transport ◽  
Magnetic Order ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Magnetic Ordering ◽  
Double Exchange ◽  
Itinerant Ferromagnetism ◽  
Organic Solids ◽  
Metal Organic ◽  
Organic Framework

<b>Materials that combine magnetic order with other desirable physical attributes offer to revolutionize our energy landscape. Indeed, such materials could find transformative applications in spintronics, quantum sensing, low-density magnets, and gas separations. As a result, efforts to design multifunctional magnetic materials have recently moved beyond traditional solid-state materials to metal–organic solids. Among these, metal–organic frameworks in particular bear structures that offer intrinsic porosity, vast chemical and structural programmability, and tunability of electronic properties. Nevertheless, magnetic order within metal–organic frameworks has generally been limited to low temperatures, owing largely to challenges in creating strong magnetic exchange in extended metal–organic solids. Here, we employ the phenomenon of itinerant ferromagnetism to realize magnetic ordering at <i>T</i><sub>C</sub> = 225 K in a mixed-valence chromium(II/III) triazolate compound, representing the highest ferromagnetic ordering temperature yet observed in a metal–organic framework. The itinerant ferromagnetism is shown to proceed via a double-exchange mechanism, the first such observation in any metal–organic material. Critically, this mechanism results in variable-temperature conductivity with barrierless charge transport below <i>T</i><sub>C</sub> and a large negative magnetoresistance of 23% at 5 K. These observations suggest applications for double-exchange-based coordination solids in the emergent fields of magnetoelectrics and spintronics. Taken together, the insights gleaned from these results are expected to provide a blueprint for the design and synthesis of porous materials with synergistic high-temperature magnetic and charge transport properties. </b>

An Overview of Metal-organic Frameworks-based Acid/Base Catalysts for Biofuel Synthesis

2020 ◽  
Vol 24 (16) ◽  
pp. 1876-1891
Author(s):  
Qiuyun Zhang ◽  
Yutao Zhang ◽  
Jingsong Cheng ◽  
Hu Li ◽  
Peihua Ma
Keyword(s):  
Alternative Fuels ◽  
Heterogeneous Catalysts ◽  
Supported Catalysts ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Flexible Structures ◽  
Biodiesel Production ◽  
Biodiesel Synthesis ◽  
Metal Organic ◽  
Organic Framework

Biofuel synthesis is of great significance for producing alternative fuels. Among the developed catalytic materials, the metal-organic framework-based hybrids used as acidic, basic, or supported catalysts play major roles in the biodiesel production. This paper presents a timely and comprehensive review of recent developments on the design and preparation of metal-organic frameworks-based catalysts used for biodiesel synthesis from various oil feedstocks, including MILs-based catalysts, ZIFs-based catalysts, UiO-based catalysts, Cu-BTC-based catalysts, and MOFs-derived porous catalysts. Due to their unique and flexible structures, excellent thermal and hydrothermal stability, and tunable host-guest interactions, as compared with other heterogeneous catalysts, metal-organic framework-based catalysts have good opportunities for application in the production of biodiesel at industrial scale.

scholarly journals Crystal growth of the core and rotated epitaxial shell of a heterometallic metal-organic framework revealed with atomic force microscopy

2021 ◽  
Author(s):  
Fajar Inggit Pambudi ◽  
Michael William Anderson ◽  
Martin Attfield
Keyword(s):  
Atomic Force Microscopy ◽  
Crystal Growth ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Force Microscopy ◽  
The Core ◽  
Atomic Force ◽  
Metal Organic ◽  
Surface Crystal ◽  
Organic Framework

Atomic force microscopy has been used to determine the surface crystal growth of two isostructural metal-organic frameworks, [Zn2(ndc)2(dabco)] (ndc = 1,4-naphthalene dicarboxylate, dabco = 4-diazabicyclo[2.2.2]octane) (1) and [Cu2(ndc)2(dabco)] (2) from...

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