首页> 外文期刊>RSC Advances >Application of group V polyoxometalate as an efficient base catalyst: a case study of decaniobate clusters
【24h】

Application of group V polyoxometalate as an efficient base catalyst: a case study of decaniobate clusters

机译:Ⅴ组多氧酸盐作为高效碱催化剂的应用 - 一种癸酸酯簇的案例研究

获取原文
           

摘要

The base catalytic activity of the decaniobate cluster (TMA) _(6) [Nb _(10) O _(28) ]·6H _(2) O (TMA ~(+) = tetramethylammonium cation) was studied theoretically and experimentally. Density functional theory calculations showed that the oxygen atoms in the cluster are highly negatively charged and suggested the possibility that the cluster can act as a base catalyst. We demonstrated for the first time that [Nb _(10) O _(28) ] ~(6?) actually exhibits base catalytic activity for aldol-type condensation reactions including Knoevenagel and Claisen–Schmidt condensation reactions. The catalytic reactions proceeded under ambient conditions, suggesting that [Nb _(10) O _(28) ] ~(6?) holds promise as a practical strong base catalyst.
机译:理论上和实验研究了癸酸酯簇(TMA)_(6)[Nb _(10)O o℃(2)o(TMA〜(+)=四甲基铵阳离子)的基础催化活性。密度函数理论计算表明,簇中的氧原子是高度负面的,并表明簇可以充当碱催化剂的可能性。我们首次证明[Nb _(10)O _(28)]〜(6?)实际上表现出用于醛醇型缩合反应的基础催化活性,包括Knoevenagel和Claisen-Schmidt缩合反应。催化反应在环境条件下进行,表明[Nb _(10)o _(28)]〜(6?)作为一种实用的强碱催化剂。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号