Electrically Conductive 3D Metal–Organic Framework Featuring π-Acidic Hexaazatriphenylene Hexacarbonitrile Ligands with Anion−π Interaction and Efficient Charge-Transport Capabilities

2020 ◽  
Vol 12 (36) ◽  
pp. 40613-40619
Author(s):  
Ashok Yadav ◽  
Dillip K. Panda ◽  
Shiyu Zhang ◽  
Wei Zhou ◽  
Sourav Saha
Keyword(s):  
Charge Transport ◽  
Metal Organic Framework ◽  
Electrically Conductive ◽  
Efficient Charge ◽  
Metal Organic ◽  
Organic Framework

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>

Metal-Organic Framework Transistors for Dopamine Sensing

2021 ◽  
Author(s):  
Jiajun Song ◽  
Jianzhong Zheng ◽  
Anneng Yang ◽  
Hong Liu ◽  
Zeyu Zhao ◽  
...  
Keyword(s):  
Charge Transport ◽  
Transport Properties ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
High Porosity ◽  
Two Dimensional ◽  
Metal Organic ◽  
Organic Framework

Two-dimensional (2D) conductive metal-organic frameworks (MOFs) can not only inherit the high porosity and tailorability of traditional MOFs but also exhibit unique charge transport properties, offering promising opportunities for applications...

Modulating the rate of charge transport in a metal–organic framework thin film using host:guest chemistry

2016 ◽  
Vol 52 (8) ◽  
pp. 1705-1708 ◽  
Author(s):  
Idan Hod ◽  
Omar K. Farha ◽  
Joseph T. Hupp
Keyword(s):  
Thin Film ◽  
Charge Transport ◽  
Transport Properties ◽  
Metal Organic Framework ◽  
Metal Organic ◽  
Organic Framework

Host:guest chemistry is used to control and manipulate charge transport properties of metal–organic framework (MOF) thin film.

Cu3(hexaiminotriphenylene)2: An Electrically Conductive 2D Metal-Organic Framework for Chemiresistive Sensing

2015 ◽  
Vol 127 (14) ◽  
pp. 4423-4426 ◽  
Author(s):  
Michael G. Campbell ◽  
Dennis Sheberla ◽  
Sophie F. Liu ◽  
Timothy M. Swager ◽  
Mircea Dincă
Keyword(s):  
Metal Organic Framework ◽  
Electrically Conductive ◽  
Chemiresistive Sensing ◽  
Metal Organic ◽  
Organic Framework

Electrically Conductive, Monolithic Metal–Organic Framework–Graphene (MOF@G) Composite Coatings

2019 ◽  
Vol 11 (6) ◽  
pp. 6442-6447 ◽  
Author(s):  
Mohamed H. Hassan ◽  
Rana R. Haikal ◽  
Tawheed Hashem ◽  
Julia Rinck ◽  
Franz Koeniger ◽  
...  
Keyword(s):  
Composite Coatings ◽  
Metal Organic Framework ◽  
Electrically Conductive ◽  
Metal Organic ◽  
Organic Framework
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