Imaging · dataset · 2026
Solvent-Fueled Anion Translocation in Crystalline Phosphonium Salt
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Externally stimulated ion motion within rigid crystalline matrices has significant potential to tune the functional properties of bulk materials but is difficult to control.
Description
Here, we report a diphosphonium diiodide that allows facile solid-state solvent-driven anion translocation, providing a direct optical readout of ionic motion. The dynamic character of anion−π<sup>+</sup> interactions enables reversible reorganization of ion pairs via exchange of co-crystallized solvent.
The relocation of the iodides over the distance of 4.3 Å triggers phase transitions and transforms the configuration of the excited state, thereby switching among locally excited fluorescence (<sup>1</sup>LE), locally excited phosphorescence (<sup>3</sup>LE), and charge-transfer phosphorescence (<sup>3</sup>CT). Consequently, photoluminescence is modulated across an exceptionally wide spectral window from 415 to 650 nm.
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Structural and theoretical investigations reveal that noncovalent interactions with solvent molecules dictate the delicate balance between solvation, hydrogen bonding, and anion−π<sup>+</sup> contacts. The resulting ion-migration-driven phase dynamics enable the conversion of directional solid-state motion into programmable luminescent responses, offering a new platform for sensing, information storage, and adaptive optoelectronic technologies.
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- DOI doi.org/10.1021/jacs.6c12003.s006 ↗
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- OAI-PMH record api.figshare.com/v2/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai%3Af… ↗
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- Possibly the same asSolvent-Fueled Anion Translocation in Crystalline Phosphonium Salt
- Possibly the same asSolvent-Fueled Anion Translocation in Crystalline Phosphonium Salt
- Possibly the same asSolvent-Fueled Anion Translocation in Crystalline Phosphonium Salt
- Possibly the same asSolvent-Fueled Anion Translocation in Crystalline Phosphonium Salt
Provenance · 1 source records, 19 field assertions
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|---|---|---|---|
| figshare | oai:figshare.com:article/33865045 | 4 d ago | JSON v1 |
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