2026-10-06T11:34:38Z https://api.figshare.com/v2/oai

oai:figshare.com:article/33865036 2026-09-16T17:14:32Z category_1 category_146 category_915 category_873 category_734 category_69 portal_63 item_type_2 month_year_09_2026

Solvent-Fueled Anion Translocation in Crystalline Phosphonium Salt Eetu Hakkarainen (24998431) Pei-Ying Huang (2105224) Chen-Yu Lin (15562517) Pi-Tai Chou (1282068) Igor O. Koshevoy (1444258) Glib V. Baryshnikov (7511540) Andrey Belyaev (3270372) Biophysics Space Science Physical Sciences not elsewhere classified Chemical Sciences not elsewhere classified Biological Sciences not elsewhere classified Inorganic Chemistry theoretical investigations reveal sup >+</ sup programmable luminescent responses fueled anion translocation driven anion translocation direct optical readout anion − π adaptive optoelectronic technologies 3 </ sup 1 </ sup allows facile solid solvent molecules dictate directional solid state solvent state motion significant potential resulting ion noncovalent interactions new platform modulated across le ), ionic motion information storage hydrogen bonding functional properties excited state dynamic character diphosphonium diiodide delicate balance ct ). crystallized solvent bulk materials 650 nm Externally stimulated ion motion within rigid crystalline matrices has significant potential to tune the functional properties of bulk materials but is difficult to control. 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⁺ 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 (¹LE), locally excited phosphorescence (³LE), and charge-transfer phosphorescence (³CT). Consequently, photoluminescence is modulated across an exceptionally wide spectral window from 415 to 650 nm. Structural and theoretical investigations reveal that noncovalent interactions with solvent molecules dictate the delicate balance between solvation, hydrogen bonding, and anion−π⁺ 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. 2026-09-16T00:00:00Z Dataset Media 10.1021/jacs.6c12003.s003 https://figshare.com/articles/media/Solvent-Fueled_Anion_Translocation_in_Crystalline_Phosphonium_Salt/33865036 CC BY-NC 4.0