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首页> 外文期刊>Zeitschrift fur Naturforschung, B. A Journal of Chemical Sciences >Determination of the charge of Al13 Keggin oligocations intercalated into synthetic hectorite
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Determination of the charge of Al13 Keggin oligocations intercalated into synthetic hectorite

机译:Al13 Keggin Oligocation的电荷嵌入合成斜度

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摘要

Applying a nematic liquid crystalline phase of a synthetic Na-hectorite with layer separations >100 nm, the reaction time for pillaring with Al13 Keggin oligocation could be reduced to seconds ensuring that cation exchange is controlled by thermodynamics. With this material at hand we are able to resolve the long-standing dispute regarding the charge of intercalated Keggin oligocations. Micropore sizes as determined by physisorption isotherms, adsorption isotherms obtained via elemental analysis, and results of 27Al solid-state NMR and pyridine probe IR spectroscopy favor a charge of +7 for the Al13 pillars intercalated into hectorite unaltered.
机译:用层分离施用合成Na-Hectorate的向液晶相> 100nm,可以减少与Al13 Keggin Oligocation柱的反应时间,确保阳离子交换由热力学控制。 用这种材料,我们能够解决关于嵌入的Keggin Oligocations的负责的长期争端。 微孔尺寸由物理吸热测定,通过元素分析获得的吸附等温线,以及27Al固态NMR和吡啶探针IR光谱的结果赞成+7的电荷,用于插入到斜倚到斜率的斜率。

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    Bavarian Polymer Institute and Department of Chemistry University of Bayreuth Universit?tsstra?e 30 95440 Bayreuth Germany;

    Bavarian Polymer Institute and Department of Chemistry University of Bayreuth Universit?tsstra?e 30 95440 Bayreuth Germany;

    Bavarian Polymer Institute and Department of Chemistry University of Bayreuth Universit?tsstra?e 30 95440 Bayreuth Germany;

    Bavarian Polymer Institute and Department of Chemistry University of Bayreuth Universit?tsstra?e 30 95440 Bayreuth Germany;

    Inorganic Chemistry III and Department of Chemistry University of Bayreuth Universit?tsstra?e 30 95440 Bayreuth Germany;

    Bavarian Polymer Institute and Department of Chemistry University of Bayreuth Universit?tsstra?e 30 95440 Bayreuth Germany;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

    Al-pillared clay; charge; hectorite; Keggin;

    机译:Al柱状粘土;电荷;斜岩;Keggin;

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