Smart Heterostructures for Tailoring the Optical Properties of Photochromic Hybrid Organic–Inorganic Polyoxometalates

Smart Heterostructures for Tailoring the Optical Properties of Photochromic Hybrid Organic–Inorganic Polyoxometalates

A new concept of photoresponsive composites has been elaborated by intimately connecting a Photochromic Phase (PP), (H2DABCO)2(HDMA)0.5Na0.75(H3O)0.75[Mo8O27]·3H2O (1), with a second hybrid organic–inorganic molybdate material, (H2DABCO)(HDABCO)[Fe(OH)6Mo6O18]·4H2O (2) acting as an Oxidation Catalyt...

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Veröffentlicht in:Inorganic chemistry 2011-09, Vol.50 (18), p.8790-8796
Hauptverfasser: Dessapt, Rémi, Gabard, Marie, Bujoli-Doeuff, Martine, Deniard, Philippe, Jobic, Stéphane
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Materials Science
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container_end_page 8796
container_issue 18
container_start_page 8790
container_title Inorganic chemistry
container_volume 50
creator Dessapt, Rémi
Gabard, Marie
Bujoli-Doeuff, Martine
Deniard, Philippe
Jobic, Stéphane
description A new concept of photoresponsive composites has been elaborated by intimately connecting a Photochromic Phase (PP), (H2DABCO)2(HDMA)0.5Na0.75(H3O)0.75[Mo8O27]·3H2O (1), with a second hybrid organic–inorganic molybdate material, (H2DABCO)(HDABCO)[Fe(OH)6Mo6O18]·4H2O (2) acting as an Oxidation Catalytic Phase (OCP) toward the former once photoexcited. The association of both the PP and the OCP in the composite drastically improves the bleaching process of the PP alone because of efficient electronic transfers through the OCP-PP interface without affecting significantly its photoinduced color change characteristic. Two OCP-PP composites with different PP weight percents have been obtained by associating 1 with 2. The optical properties of these composites before and after UV irradiation have been investigated by Diffuse Reflectance Spectroscopy, and the strong impact of the OCP on the fading kinetics of the PP has been clearly highlighted.
doi_str_mv 10.1021/ic200653d
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title Smart Heterostructures for Tailoring the Optical Properties of Photochromic Hybrid Organic–Inorganic Polyoxometalates
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