期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 58, 期 4, 页码 1193-1197出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201811458
关键词
conductivity; merocyanine; metal-organic frameworks; photoswitching; spiropyrans
资金
- Volkswagenstiftung
- DFG [HE 7036/5, SFB 1176]
- M-ERA.NET MODIGLIANI
- Ministry of Science, Research and the Arts of Baden-Wurttemberg
- DFG
Conductive metal-organic frameworks (MOFs) as well as smart, stimuli-responsive MOF materials have attracted considerable attention with respect to advanced applications in energy harvesting and storage as well as in signal processing. Here, the conductance of MOF films of type UiO-67 with embedded photoswitchable nitro-substituted spiropyrans was investigated. Under UV irradiation, the spiropyran (SP) reversibly isomerizes to the open merocyanine (MC) form, a zwitterionic molecule with an extended conjugated pi-system. The light-induced SP-MC isomerization allows for remote control over the conductance of the SP@UiO-67 MOF film, and the conductance can be increased by one order of magnitude. This research has the potential to contribute to the development of a new generation of photoelectronic devices based on smart hybrid materials.
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