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RESEARCH PRODUCT
Charge-transfer interactions between fullerenes and a mesoporous tetrathiafulvalene-based metal–organic framework
Aron WalshSamuel Mañas‐valeroManuel SoutoGuillermo Mínguez EspallargasJoaquín Calbosubject
Materials scienceFullerenemetal–organic frameworks (MOFs)General Physics and Astronomy010402 general chemistrylcsh:Chemical technology01 natural scienceslcsh:TechnologyFull Research Paperchemistry.chemical_compoundMoleculeNanotechnologyGeneral Materials Sciencelcsh:TP1-1185Electrical and Electronic Engineeringdonor–acceptorPorositylcsh:ScienceMaterials010405 organic chemistrylcsh:TNanotecnologiafullerenecharge transferSorptionlcsh:QC1-9990104 chemical sciencestetrathiafulvalene (TTF)NanoscienceChemical engineeringchemistryDensity functional theoryMetal-organic frameworklcsh:QMesoporous materialTetrathiafulvalenelcsh:Physicsdescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-09-01 | Beilstein Journal of Nanotechnology |