scholarly journals Effects of intervalence charge transfer interaction between π-stacked mixed valent tetrathiafulvalene ligands on the electrical conductivity of 3D metal–organic frameworks

2021 ◽  
Author(s):  
Shiyu Zhang ◽  
Dillip K. Panda ◽  
Ashok Yadav ◽  
Wei Zhou ◽  
Sourav Saha

Through-space charge movement enabled by intervalence charge transfer interactions between π-stacked mixed-valent tetrathiafulvalene ligands creates electrical conductivity in three-dimensional metal–organic frameworks.

2020 ◽  
Vol 11 (20) ◽  
pp. 5213-5220
Author(s):  
Patrick W. Doheny ◽  
Jack K. Clegg ◽  
Floriana Tuna ◽  
David Collison ◽  
Cameron J. Kepert ◽  
...  

Gaining a fundamental understanding of charge transfer mechanisms in three-dimensional Metal–Organic Frameworks (MOFs) is crucial to the development of electroactive and conductive porous materials.


2017 ◽  
Vol 53 (50) ◽  
pp. 6720-6723 ◽  
Author(s):  
Shotaro Yoshimaru ◽  
Masaaki Sadakiyo ◽  
Aleksandar Staykov ◽  
Kenichi Kato ◽  
Miho Yamauchi

A charge transfer interaction between Pt nanoparticles and MOFs modulated the catalytic activity of Pt for a CO oxidation reaction.


2019 ◽  
Vol 10 (5) ◽  
pp. 1392-1400 ◽  
Author(s):  
Bowen Ding ◽  
Carol Hua ◽  
Cameron J. Kepert ◽  
Deanna M. D'Alessandro

Metal–organic frameworks incorporating cofacially-aligned redox-active ligands exhibit through-space intervalence charge transfer phenomena.


2018 ◽  
Vol 140 (21) ◽  
pp. 6622-6630 ◽  
Author(s):  
Carol Hua ◽  
Patrick W. Doheny ◽  
Bowen Ding ◽  
Bun Chan ◽  
Michelle Yu ◽  
...  

2019 ◽  
Vol 10 ◽  
pp. 1883-1893 ◽  
Author(s):  
Manuel Souto ◽  
Joaquín Calbo ◽  
Samuel Mañas-Valero ◽  
Aron Walsh ◽  
Guillermo Mínguez Espallargas

The design of metal–organic frameworks (MOFs) incorporating electroactive guest molecules in the pores has become a subject of great interest in order to obtain additional electrical functionalities within the framework while maintaining porosity. Understanding the charge-transfer (CT) process between the framework and the guest molecules is a crucial step towards the design of new electroactive MOFs. Herein, we present the encapsulation of fullerenes (C60) in a mesoporous tetrathiafulvalene (TTF)-based MOF. The CT process between the electron-acceptor C60 guest and the electron-donor TTF ligand is studied in detail by means of different spectroscopic techniques and density functional theory (DFT) calculations. Importantly, gas sorption measurements demonstrate that sorption capacity is maintained after encapsulation of fullerenes, whereas the electrical conductivity is increased by two orders of magnitude due to the CT interactions between C60 and the TTF-based framework.


Author(s):  
Manuel Souto ◽  
Joaquín Calbo ◽  
Samuel Mañas-Valero ◽  
Aron Walsh ◽  
Guillermo Minguez Espallargas

<p>The design of Metal-Organic Frameworks (MOFs) incorporating electroactive guest molecules in the pores has become a subject of great interest in order to install additional electrical functionalities within the framework while maintaining porosity. In this direction, understanding the charge-transfer (CT) process between the framework and the guest molecules is crucial towards the design of new electroactive MOFs. Herein, we present the encapsulation of fullerenes (C<sub>60</sub>) in a mesoporous tetrathiafulvalene(TTF)-based MOF. The CT process between the electron-acceptor C<sub>60 </sub>guest and the electron-donor TTF ligand is studied in detail by means of different spectroscopic techniques and density functional theory calculations. Importantly, gas sorption measurements demonstrate that sorption capacity is maintained after encapsulation of fullerenes, whereas the electrical conductivity is increased by two orders of magnitude due to the CT interactions between C<sub>60</sub>and the TTF-based framework. </p>


2019 ◽  
Author(s):  
Manuel Souto ◽  
Joaquín Calbo ◽  
Samuel Mañas-Valero ◽  
Aron Walsh ◽  
Guillermo Minguez Espallargas

<p>The design of Metal-Organic Frameworks (MOFs) incorporating electroactive guest molecules in the pores has become a subject of great interest in order to install additional electrical functionalities within the framework while maintaining porosity. In this direction, understanding the charge-transfer (CT) process between the framework and the guest molecules is crucial towards the design of new electroactive MOFs. Herein, we present the encapsulation of fullerenes (C<sub>60</sub>) in a mesoporous tetrathiafulvalene(TTF)-based MOF. The CT process between the electron-acceptor C<sub>60 </sub>guest and the electron-donor TTF ligand is studied in detail by means of different spectroscopic techniques and density functional theory calculations. Importantly, gas sorption measurements demonstrate that sorption capacity is maintained after encapsulation of fullerenes, whereas the electrical conductivity is increased by two orders of magnitude due to the CT interactions between C<sub>60</sub>and the TTF-based framework. </p>


2016 ◽  
Vol 4 (20) ◽  
pp. 7710-7717 ◽  
Author(s):  
Daeok Kim ◽  
Dae Woo Kim ◽  
Won G. Hong ◽  
Ali Coskun

We present a new approach to introduce hierarchical porosity along with electrical conductivity into three-dimensional metal–organic frameworks.


2020 ◽  
Vol 528 ◽  
pp. 147053 ◽  
Author(s):  
Siqi Wang ◽  
Fanqi Meng ◽  
Xuejiao Sun ◽  
Mingjun Bao ◽  
Jiawen Ren ◽  
...  

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