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Bolle, P., Cheret, Y., Roiland, C., Sanguinet, L., Faulques, E., Serier-Brault, H., Bouit, P.-A., Hissler, M. & Dessapt, R. (2019) Strong Solid-state Luminescence Enhancement in Supramolecular Assemblies of Polyoxometalate and "Aggregation-Induced Emission"-active Phospholium. Chemistry-an Asian Journal, 14 1642–1646.
Added by: Richard Baschera (2019-07-15 14:27:14) Last edited by: Richard Baschera (2019-07-17 09:47:56) |
| Type de référence: Article DOI: 10.1002/asia.201801397 Clé BibTeX: Bolle2019 Voir tous les détails bibliographiques  |
Catégories: MIOPS Créateurs: Bolle, Bouit, Cheret, Dessapt, Faulques, Hissler, Roiland, Sanguinet, Serier-Brault Collection: Chemistry-an Asian Journal |
Consultations : 1/355
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| Résumé |
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Two new supramolecular fluorescent hybrid materials, combining for the first time [M6O19](2-) (M=Mo, W) polyoxometalates (POMs) and aggregation-induced emission (AIE)-active 1-methyl-1,2,3,4,5-pentaphenyl-phospholium (1(+)), were successfully synthesized. This novel molecular self-assembling strategy allows designing efficient solid-state emitters, such as (1)(2)[W6O19], by directing favorably the balance between the AIE and aggregation-caused quenching (ACQ) effects using both anion-(+) and H-bonding interactions in the solid state. Combined single-crystal X-ray diffraction, Raman, UV-vis and photoluminescence analyses highlighted that the nucleophilic oxygen-enriched POM surfaces strengthened the rigidity of the phospholium via strong C-HO contacts, thereby exalting its solid-state luminescence. Besides, the bulky POM anions prevented - stacking interactions between the luminophores, blocking detrimental self-quenching effects.
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