Unprecedented ¹/_鈭?/span>[尾-Mo₈O₂₆]^{4鈭?/sup> polymeric chains and four novel organic-inorganic hybrids based on Mo-POMs and azaheterocycles templates}

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• 作者：Hai-Juan Du ; Shu Zun-Zhe ; Yun-Yin Niu ; ^{niuyy@zzu.edu.cn} ; Li-Sha Song ; Yu Zhu
• 关键词：Template effect ; Octamolybdate ; Crystal structure ; Catalytic activities
• 刊名：Journal of Solid State Chemistry
• 出版年：2012
• 期刊代码：130_00224596
• 类别：ch
• 出版时间：June, 2012
• 卷：190
• 期：Complete
• 页码：296-302
• 文件大小：1444 K

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Four novel organic-inorganic hybrid materials based on Mo-POMs and organic templates, namely [DEB] [尾-Mo₈O₂₆] [NH₄]₂ (1), [BMIM] [尾-Mo₈O₂₆]_0.5路H₂O (2), [BMIM] [1D-Mo₈O₂₆]_0.5 (3) and {3D-[Cu(DIE)₂] [1D-Mo₈O₂₆]_0.5}_鈭?/em> (4) [DEB= 1,1鈥?diethyl-4,4鈥?bipyridinium, BMIM=1,1鈥?bis(1-methylimidazolium)methylene, DIE=1,2-diimidazoloethane] have been hydrothermally synthesized and characterized by elemental analyses, IR spectroscopy, thermal gravimetric analysis(TGA) and single-crystal X-ray diffraction. Both compounds 1 and 2 are POMs-based supramolecular compounds consisted of independent [尾-Mo₈O₂₆]^{4鈭?/sup> anions and [DEB]2+ or [BMIM]2+ organic cations. Compound 3 is the first external template example of Mo-POMs-based supramolecular network incorporated with novel 1/_鈭?/em>[尾-Mo₈O₂₆]4鈭?/sup> polymeric chains. Compound 4 is a rare supramolecular structure that contains octamolybdate 1/_鈭?/em>[尾-Mo₈O₂₆]4鈭?/sup> polymeric chains interconnected via DIE ligands to form a 3D net. Moreover, it was indicated that these polyacid compounds had definite catalytic activities on the probe reaction of acetaldehyde oxidation to acetic acid with H₂O₂.}