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Synthesis of stable ruthenium carbonyl complexes containing alkynols ligands and 2(diphenylphosphino)ethyl-triethoxysilane: novel complexes to anchor on mesoporous silica SBA-15 and Al2O3 surface

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Abstract

The triruthenium complexes containing alkynols ligands have been reacted with 2(diphenylphosphino)ethyl-triethoxysilane (dpts), obtaining novel chemically stable disubstituted complexes. The same disubstituted Ru complexes above described were also synthesized following another approach based on the reaction from the phosphine substituted complex Ru3(CO)10(dpts)2 and the same alkynols ligands used to obtain the above triruthenium complexes. One of these stable complexes, the HRu3(CO)7[C≡C(Me)2(OH)](dpts)2 compound was grafted on the mesoporous silica SBA-15 and on γ-Al2O3 surface in order to obtain novel hybrid materials to employ in heterogeneous catalysis. The resulting materials have been characterized by multidisciplinary approach based on inductively coupled plasma-mass spectrometry (ICP-MS), FT-IR, XRD, physisorption measurements and DR-UV–Visible spectroscopy.

Graphical abstract

Novel chemically stable phosphine-substituted ruthenium clusters containing alkynols ligands have been prepared following two different synthetic approaches. One of these complexes have been anchored on SBA-15 and alumina supports, obtaining chemically stable organic/inorganic hybrid materials to employ in heterogeneous catalysis field.

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Acknowledgments

The present study was supported by the co-financed programme PRIN 2008 (MIUR/Università del Piemonte Orientale). The authors acknowledge Dr. Claudio Cassino, for helpful discussions on the NMR results.

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Authors and Affiliations

  1. Dipartimento di Scienze e Tecnologie Avanzate, Centro Interdisciplinare NanoSistemi, Università del Piemonte Orientale, V.le Teresa Michel 11, 15121, Alessandria, Italy

    Andrea Secco, Fabio Carniato, Giorgio Gatti & Enrico Sappa

  2. Dipartimento di Chimica IFM, Centro Interdipartimentale di Cristallografia Diffrattometrica (CrisDi), Università di Torino, Via Pietro Giuria 7, 10125, Turin, Italy

    Domenica Marabello

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  1. Andrea Secco
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  2. Fabio Carniato
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  3. Giorgio Gatti
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  4. Domenica Marabello
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  5. Enrico Sappa
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Correspondence to Enrico Sappa.

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Secco, A., Carniato, F., Gatti, G. et al. Synthesis of stable ruthenium carbonyl complexes containing alkynols ligands and 2(diphenylphosphino)ethyl-triethoxysilane: novel complexes to anchor on mesoporous silica SBA-15 and Al2O3 surface. J Sol-Gel Sci Technol 58, 564–571 (2011). https://doi.org/10.1007/s10971-011-2428-5

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  • DOI: https://doi.org/10.1007/s10971-011-2428-5

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