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Luminescent multifunctional hybrids obtained by grafting of ruthenium complexes on mesoporous silica

Sábio, Rafael Miguel and Gressier, Marie and Caiut, José Maurício A. and Menu, Marie-Joëlle and Ribeiro, Sidney J.L. Luminescent multifunctional hybrids obtained by grafting of ruthenium complexes on mesoporous silica. (2016) Materials Letters, 174. 1-5. ISSN 0167-577X

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Official URL: https://doi.org/10.1016/j.matlet.2016.03.058

Abstract

This work evaluates the luminescent properties of new hybrids obtained by covalent grafting of ruthenium complexes on mesoporous silica particles. Spray pyrolysis afforded the mesoporous silica particles in one step; two different types of structure-directing agents were employed. Scanning and transmission electron microscopy (SEM and TEM, respectively) analyses confirmed that the particles had spherical morphology and ordered hexagonal mesoporosity (2 and 5nm), which justified the high surface area up to 1420m2g-1 measured by Brunauer-Emmett-Teller (BET) surface area analysis. Covalent grafting of silylated ruthenium(II) complexes [Ru(bpy)21]Cl2 and [Ru(bpy)22]Cl2 on the mesoporous particles gave monolayered hybrids, characterized by fourier transform infrared spectroscopy (FTIR), TEM, and photoluminescence. Results highlighted the formation of new luminescent platforms containing an estimated 0.11mmol of ruthenium(II) complex per gram of silica, which corresponded to 0.09 ruthenium(II) complex nm−2 of silica.

Item Type:Article
HAL Id:hal-02319919
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Other partners > Universidade de São Paulo - USP (BRAZIL)
Laboratory name:
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Deposited By: Yves MOMBOISSE
Deposited On:18 Oct 2019 11:08

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