[EN] PROCESS FOR PREPARING DIENYL-RUTHENIUM COMPLEXES<br/>[FR] PROCÉDÉ POUR LA FABRICATION DE COMPLEXES DE DIÉNYL-RUTHÉNIUM
申请人:UMICOR AG & CO KG
公开号:WO2009146870A1
公开(公告)日:2009-12-10
The present invention relates to a single-stage process for preparing dienyl- ruthenium complexes of the formula Ru(+II)(dienyl)2, wherein an Ru(II) starting compound of the formula Ru(X)p(Y)q is reacted with a diene ligand in the presence of an inorganic and/or organic base in a single-stage process. Here, polar organic solvents, preferably mixtures of polar organic solvents with water, are used. The dienyl-ruthenium complexes prepared according to the invention are used as precursors for homogeneous catalysts, for producing functional coatings and for therapeutic applications.
analogous reaction with cyclo-octa-1,3-diene, cyclohepta-1,3-diene, and cyclopentadiene leads to the isolation of the corresponding dienyl complexes bis(1–5-η-cyclo-octadienyl)ruthenium, (3), bis(1–5-η-cycloheptadienyl)ruthenium, (4), and ruthenocene, (5). Complex (3) is best prepared by heating (2) in hydrocarbon solvents at ca. 100 °C.
Ruthenium (Ru) thinfilms were grown via atomiclayer deposition (ALD) using a novel Ru precursor with enhanced reactivity, namely Ru(η5-cycloheptadienyl)2 (Ru(chd)2) and O2. Self-limiting growth during the Ru ALD process was achieved by varying the Ru precursor and O2 feeding times. Metallic Ru films with a low resistivity (10–16 μΩ cm) grew at deposition temperatures between 200 and 300 °C, where
The dimeric complex di-μ-chlorodichloro-bis[(1−3η:6−8η)-2,7-dimethyloctadienediyl]diruthenium(IV) in the presence of base reacts with cyclic and acyclic dienes to the corresponding bis(η5-dienyl)ruthenium(II) compounds. Crystalline yellow compounds have been isolated in high yields for dienyl = cyclopentadienyl, pentamethylpentadienyl, cycloheptadienyl, indenyl, dimethylpentadienyl, and trimethylpentadienyl