NDLI: Probing charge transfer characteristics in a donor-acceptor metal-organic framework by Raman spectroelectrochemistry and pressure-dependence studies.

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Probing charge transfer characteristics in a donor-acceptor metal-organic framework by Raman spectroelectrochemistry and pressure-dependence studies.

Content Provider	Semantic Scholar
Author	Usov, Pavel M. Leong, Chanel F. Chan, Bun Hayashi, Mikihiro Kitagawa, Hiroshi Sutton, Joshua J. Gordon, Keith C. Hod, Idan Farha, Omar K. Hupp, Joseph T. Addicoat, Matthew A. Kuc, Agnieszka Beata Heine, Thomas D'Alessandro, Deanna M.
Copyright Year	2018
Abstract	The stimuli responsive behaviour of charge transfer donor-acceptor metal-organic frameworks (MOFs) remains an understudied phenomenon which may have applications in tuneable electronic materials. We now report the modification of donor-acceptor charge transfer characteristics in a semiconducting tetrathiafulvalene-naphthalene diimide-based MOF under applied electrochemical bias and pressure. We employ a facile solid state in situ Raman spectroelectrochemical technique, applied for the first time in the characterisation of electroactive MOFs, to monitor the formation of a new complex TTFTC˙+-DPNI from a largely neutral system, upon electrochemical oxidation of the framework. In situ pressure-dependent Raman spectroscopy and powder X-ray diffraction experiments performed in a diamond anvil cell revealed blue shifts in the donor and acceptor vibrational modes in addition to contractions in the unit cell which are indicative of bond shortening. This study demonstrates the utility of in situ Raman spectroscopic techniques in the characterisation of redox-active MOFs and the elucidation of their electronic behaviours.
Starting Page	25772
Ending Page	25779
Page Count	8
File Format	PDF HTM / HTML
DOI	10.1039/c8cp04157a
Alternate Webpage(s)	http://www.rsc.org/suppdata/c8/cp/c8cp04157a/c8cp04157a1.pdf
Alternate Webpage(s)	http://irep.ntu.ac.uk/id/eprint/34460/1/11886_Addicoat.pdf
Alternate Webpage(s)	https://www.hzdr.de/publications/PublDoc-12617.pdf
Alternate Webpage(s)	https://pubs.rsc.org/en/content/getauthorversionpdf/C8CP04157A
PubMed reference number	30283919
Alternate Webpage(s)	https://doi.org/10.1039/c8cp04157a
Journal	Medline
Volume Number	20
Issue Number	40
Journal	Physical chemistry chemical physics : PCCP
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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