Synthesis and structure of new phosphine-substituted homo- and hetero-bimetallic carbonyl clusters of iron, ruthenium and nickel. Characterization of two inorganic-organometallic hybrid materials based on mesoporous SBA-15 silica |
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| Authors: | Fabio Carniato Giuliana Gervasio Enrico Sappa Andrea Secco |
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| Affiliation: | a Dipartimento di Scienze e Tecnologie Avanzate, Centro Interdisciplinare NanoSistemi, Università del Piemonte Orientale, Viale Teresa Michel 11, 15121 Alessandria, Italy
b Dipartimento di Chimica IFM, Università di Torino, Centro Interdipartimentale di Cristallografia Diffrattometrica (CrisDi), Via Pietro Giuria 7, 10125 Torino, Italy |
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| Abstract: | The reactions of the complexes Fe3(CO)12, H2FeRu3(CO)13, H2Ru4(CO)13 and CpNiRu3(H)3(CO)9 with 2(diphenylphosphino)ethyl-triethoxysilane give considerable yields of the complexes Fe3(CO)10L2 (1), H2FeRu3(CO)10L2 (2), Ru4(CO)10L3 (3) and CpNiRu3(H)3(CO)7L2 (4) where L = Ph2PCH2CH2Si(OEt)3. The complexes (1-3) have been characterized by analytical and spectroscopic techniques. The structure of (4) has been determined by X-ray analysis. The presence of a phosphine containing the -Si(OEt)3 group has been exploited for grafting complexes (3) and (4) on the mesoporous SBA-15 and the resulting inorganic-organometallic materials have been characterized by means of ICP-MS, FT-IR, DR-UV-vis spectroscopy, XRD and textural analysis. |
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| Keywords: | Iron, ruthenium and nickel carbonyl clusters Functionalized phosphine Inorganic-organometallic systems X-ray structure determination SBA-15 |
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