The characterization and thermal stability of a cluster grafted on silica surface期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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The characterization and thermal stability of a cluster grafted on silica surface

Authors:	Albert Theolier Agnès Choplin Lindora D&#x;Ornelas Jean-Marie Basset Gianmaria Zanderighi C Sourisseau

Institution:	Institut de Recherche sur la Catalyse 2, avenue Albert Einstein-69626 Villeurbanne Cédex-France;Renato UGO, Rinaldo PSARO Istituto di Chimica Generale ed Inorganica, Centro CNR Università di Milano-21, via Venezian-20133 Milano-Italia;LASIR-CNRS 2, 2, rue H. Dunant-94320 Thiais France

Abstract:	Ru₃(CO)₁₂, supported on silica in the absence of oxygen, reacts with silanol groups of the surface to produce a grafted cluster , which has been characterized by IR and Raman spectroscopy; the molecular formula of this cluster is in agreement with the stoichiometric balance of CO evolved during its formation from Ru₃(CO)₁₂. The grafted cluster is an intermediate step to produce by thermal decomposition small metallic ruthenium particles of 14 Å together with some Ru(II) carbonyl species encapsulated in the silica surface.

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