Sulfonium Polyoxometalates: A New Class of Solid-State Photochromic Hybrid Organic-Inorganic Materials.
For the very first time, sulfonium polyoxometalate (POM) assemblies are shown to develop efficient solid-state photochromism in ambient conditions. The optical properties of the already known Rb0.75(NH4)5.25[(Mo3O8)2O(O3PC(CH2SMe2)OPO3)2]·8H2O (1) and (Me3S)4[Mo8O26] (2) under UV excitation were studied by diffuse reflectance spectroscopy, revealing that the color change effect is highly tunable playing with the nature of the POM. A mechanism involving the photoredn. of Mo6+ cations assocd. with electron transfers from the sulfonium cations toward the POMs is proposed. [on SciFinder(R)]
Références
- Titre
- Sulfonium Polyoxometalates: A New Class of Solid-State Photochromic Hybrid Organic-Inorganic Materials.
- Type de publication
- Article de revue
- Année de publication
- 2013
- Auteurs
- Hakouk, Khadija, Oms Olivier, Dolbecq Anne, Moll Hani El, Marrot Jérôme, Evain Michel, Molton Florian, Duboc Carole, Deniard Philippe, Jobic Stéphane, Mialane Pierre, and Dessapt Remi.
- Revue
- Inorg. Chem.
- Volume
- 52
- Pagination
- 555–557
- ISSN
- 0020-1669
- Mots-clés
- ammonium ethylammonium octamolybdate prepn crystal structure photochromism coloration kinetics photochromism sulfonium molybdate polyoxometalate photochromism sulfonium molybdate polyoxometalate photoredn electron transfer mechanism sulfonium octamolybdate prepn crystal structure photochromism
Soumis le 12 avril 2018