Projects per year
Abstract
Fundamental knowledge on the intrinsic timescale of structural transformations in photo-switchable metal-organic framework films is crucial to tune their switching performance and to facilitate their applicability as stimuli-responsive materials. In this work, for the first time, an integrated approach to study and quantify the temporal evolution of structural transformations is demonstrated on an epitaxially oriented DMOF-1-on-MOF film system comprising azobenzene in the DMOF-1 pores (DMOF-1/AB). We employed time-resolved Grazing Incidence Wide-Angle X-Ray Scattering measurements to track the structural response of the DMOF-1/AB film upon altering the length of the azobenzene molecule by photo-isomerization (trans-to-cis, 343 nm; cis-to-trans, 450 nm). Within seconds, the DMOF-1/AB response occurred fully reversible and over several switching cycles by cooperative photo-switching of the oriented DMOF-1/AB crystallites as confirmed further by infrared measurements. Our work thereby suggests a new avenue to elucidate the timescales and photo-switching characteristics in structurally responsive MOF film systems.
Original language | English |
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Pages (from-to) | 11869-11877 |
Number of pages | 9 |
Journal | Chemical Science |
Volume | 13 |
Issue number | 40 |
DOIs | |
Publication status | Published - 27 Sept 2022 |
ASJC Scopus subject areas
- Chemistry(all)
Fields of Expertise
- Advanced Materials Science
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Porous Materials @ Work for Sustainability
Carraro, F., Stana Kleinschek, K., Rath, T., Subotić, V., Resel, R., Velasquez Hernandez, M., Emmerstorfer-Augustin, A., Linares Moreau, M. D. L. M., Nidetzky, B., Zojer, E., Sommitsch, C., Kienberger, M., Spirk, S., Amenitsch, H., Zojer, K., Schultze, M., Würschum, R., Gescheidt-Demner, G., Kargl, R., Zhong, C., Falcaro, P., Hengge, E., Steyskal, E., Borisov, S., Trimmel, G., Slugovc, C. & Wieser, S.
1/09/22 → 31/08/25
Project: Research project
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EU - POPCRYSTAL - Precisely Oriented Porous Crystalline Films and Patterns
1/05/18 → 30/04/23
Project: Research project
Activities
- 2 Talk at conference or symposium
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Unraveling the timescale of the structural photo response within oriented Metal Organic Framework films
Sumea Klokic (Speaker), Benedetta Marmiroli (Contributor), Denys Naumenko (Contributor), Francesco Carraro (Contributor), Maria de las Mercedes Linares Moreau (Contributor), Simone Dal Zilio (Contributor), Giovanni Birarda (Contributor), Rupert Kargl (Contributor), Paolo Falcaro (Contributor) & Heinz Amenitsch (Contributor)
16 Sept 2022Activity: Talk or presentation › Talk at conference or symposium › Science to science
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Guest‐driven structural dynamics in photo-responsiveMOF films
Sumea Klokic (Speaker), Denys Naumenko (Contributor), Benedetta Marmiroli (Contributor), Francesco Carraro (Contributor), Maria de las Mercedes Linares Moreau (Contributor), Simone Dal Zilio (Contributor), Giovanni Birarda (Contributor), Rupert Kargl (Contributor), Paolo Falcaro (Contributor) & Heinz Amenitsch (Contributor)
28 Sept 2022Activity: Talk or presentation › Talk at conference or symposium › Science to science
Prizes
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Best Presentation Award - 2nd ICLLT Conference
Klokic, Sumea (Recipient), 28 May 2021
Prize: Prizes / Medals / Awards