New Methacrylate-Functionalized Ba and Ba-Ti Oxoclusters as Potential Nanosized Building Blocks for Inorganic-Organic Hybrid Materials: Synthesis and Characterization

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• 作者：Alberto Albinati ; Francesco Faccini ; Silvia Gross ; Guido Kickelbick ; Silvia Rizzato ; Alfonso Venzo
• 刊名：Inorganic Chemistry
• 出版年：2007
• 出版时间：April 30, 2007
• 年：2007
• 卷：46
• 期：9
• 页码：3459 - 3466
• 全文大小：529K
• 年卷期：v.46,no.9(April 30, 2007)
• ISSN：1520-510X

文摘

Two different methacrylate modified barium-titanium and barium-based oxoclusters, Ba₂Ti₁₀(G SRC="/images/entities/mgr.gif">₃-O)₈(ges/entities/mgr.gif">₂-OH)₅(ges/entities/mgr.gif">₂-OMc)₂₀(OⁱPrOMe)₂ (1) and [Ba(OMc)₂(McOH)₃]_n (2), were synthesized by reacting methacrylic acid with barium-titanium and barium-zirconium double alkoxides, respectively. The X-ray structure determination of oxocluster 1shows a core consisting of a ring of 10 titania octahedra, sharing corners, that surround the two barium oxygendecaeders which are linked by common edges to the titania octahedra and the neighboring barium decaeder. Thesolid-state structure of 2 consists of zigzag chains of edge-sharing {BaO₉} polyhedra linked through bridgingbidentate metacrylate anions, displaying different coordination mode of carboxylate groups. The presence ofmethacrylate groups surrounding the two polynuclear compounds has been exploited for the embedding of theoxocluster in inorganic-organic hybrid materials, and some preliminary results are presented.