scholarly journals Post synthetic exchange enables orthogonal click chemistry in a metal organic framework

2019 ◽  
Vol 48 (1) ◽  
pp. 45-49 ◽  
Author(s):  
Ulrike Fluch ◽  
Brian D. McCarthy ◽  
Sascha Ott
Keyword(s):  
Click Chemistry ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Metal Organic ◽  
Linker Exchange ◽  
Organic Framework

Post synthetic linker exchange can be combined with Cu-catalyzed alkyne/azide click chemistry to enable orthogonal modification of known metal organic frameworks.

scholarly journals Strongly visible light-absorbing metal–organic frameworks functionalized by cyclometalated ruthenium(ii) complexes

RSC Advances ◽  
2020 ◽  
Vol 10 (15) ◽  
pp. 9052-9062
Author(s):  
Eirik Mydske Thoresen ◽  
Sigurd Øien-Ødegaard ◽  
Gurpreet Kaur ◽  
Mats Tilset ◽  
Karl Petter Lillerud ◽  
...  
Keyword(s):  
Visible Light ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Metal Organic ◽  
Linker Exchange ◽  
Organic Framework

The metal–organic framework (MOF) UiO-67 was functionalized by incorporating different cyclometalated ruthenium(ii) complexes using three different methods: premade linker synthesis, postsynthetic functionalization, and postsynthetic linker exchange.

The use of reduced copper metal–organic frameworks to facilitate CuAAC click chemistry

2016 ◽  
Vol 52 (82) ◽  
pp. 12226-12229 ◽  
Author(s):  
Q. Fu ◽  
K. Xie ◽  
S. Tan ◽  
J. M. Ren ◽  
Q. Zhao ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Click Chemistry ◽  
Structural Stability ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Copper Metal ◽  
Copper Halide ◽  
Click Reactions ◽  
Metal Organic ◽  
Organic Framework

A reduced copper metal–organic framework (rCu-MOF) containing CuI ions was prepared and employed as a catalyst for ‘Click’ reactions. The rCu-MOF presents higher catalytic activity, good structural stability as well as facile recyclability compared to traditional copper halide catalysts.

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...

Phytic acid functionalized magnetic bimetallic metal–organic frameworks for phosphopeptide enrichment

2021 ◽  
Vol 9 (7) ◽  
pp. 1811-1820
Author(s):  
Shuang Yan ◽  
Bin Luo ◽  
Jia He ◽  
Fang Lan ◽  
Yao Wu
Keyword(s):  
Phytic Acid ◽  
Efficient Method ◽  
High Selectivity ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
High Sensitivity ◽  
Phosphopeptide Enrichment ◽  
Metal Organic ◽  
Organic Framework

Novel bimetallic metal–organic framework nanocomposites were fabricated by a facile yet efficient method. The as-prepared nanomaterial exhibited high sensitivity and high selectivity toward phosphopeptides and good reusability of five cycles for enriching phosphopeptides.

scholarly journals Isomerization of glucose to fructose catalyzed by metal-organic framework

2021 ◽  
Author(s):  
Marta Lara-Serrano ◽  
Silvia Morales-delaRosa ◽  
Jose M. Campos-Martin ◽  
Víctor Karim Abdelkader-Fernández ◽  
Luis Cunha-Silva ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Isomerization Reaction ◽  
Metal Organic ◽  
Organic Framework

The isomerization reaction of glucose to fructose was studied using five selected metal-organic frameworks (MOFs) as catalysts and a mixture of γ-valerolactone and 10% H2O as the solvent. MOFs with...

scholarly journals Vapor‐Phase Linker Exchange of the Metal–Organic Framework ZIF‐8: A Solvent‐Free Approach to Post‐synthetic Modification

2019 ◽  
Vol 58 (51) ◽  
pp. 18471-18475
Author(s):  
João Marreiros ◽  
Lenz Van Dommelen ◽  
Guillaume Fleury ◽  
Rodrigo Oliveira‐Silva ◽  
Timothée Stassin ◽  
...  
Keyword(s):  
Vapor Phase ◽  
Metal Organic Framework ◽  
Solvent Free ◽  
Metal Organic ◽  
Linker Exchange ◽  
Organic Framework
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