Guest‐Responsive Reversible Electron Transfer in a Crystalline Porous Framework Supported by a Dynamic Building Node | Zendy

Sikdar Nivedita | Zendy; Hazra Arpan | Zendy; Samanta Debabrata | Zendy; Haldar Ritesh | Zendy; Maji Tapas Kumar | Zendy

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Guest‐Responsive Reversible Electron Transfer in a Crystalline Porous Framework Supported by a Dynamic Building Node

Author(s) -

Sikdar Nivedita,

Hazra Arpan,

Samanta Debabrata,

Haldar Ritesh,

Maji Tapas Kumar

Publication year - 2020

Publication title -

angewandte chemie

Language(s) - English

Resource type - Journals

eISSN - 1521-3757

pISSN - 0044-8249

DOI - 10.1002/ange.202008189

Subject(s) - metal organic framework , acceptor , electron transfer , anthracene , chemistry , solvent , linker , flexibility (engineering) , redox , node (physics) , materials science , nanotechnology , crystallography , photochemistry , inorganic chemistry , computer science , organic chemistry , adsorption , physics , statistics , mathematics , structural engineering , engineering , condensed matter physics , operating system

We demonstrate a redox‐active, crystalline donor–acceptor (D‐A) assembly in which the electron transfer (ET) process can be reversibly switched. This ET process, induced by a guest‐responsive structural transformation at room temperature, is realized in a porous, metal–organic framework (MOF), having anthracene (D)–naphthalenediimide (A) as struts. A control MOF structure obtained by a solvent‐assisted linker exchange (SALE) method, replacing an acceptor strut with a neutral one, supported the switchable electronic states in the D‐A MOF. Combined investigations with X‐ray diffraction, spectroscopy, and theoretical analyses revealed the dynamic metal paddle‐wheel node as a critical unit for controlling structural flexibility and the corresponding unprecedented ET process.

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