...
首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >A functionalized polyoxometalate solid for selective oxidation of styrene to benzaldehyde
【24h】

A functionalized polyoxometalate solid for selective oxidation of styrene to benzaldehyde

机译:一种功能化的多金属氧酸盐固体,用于将苯乙烯选择性氧化为苯甲醛

获取原文
获取原文并翻译 | 示例
           

摘要

The reaction of [Na-12(H2O)(38)][WZn{M(H2O)}(2)(ZnW9O34)(2)]center dot 3H(2)O (M = Mn, Co) and Co(NO3)(2)center dot 6H(2)O in water at 80 degrees C afforded red crystals of [Co(H2O)(6)](2){[Co(H2O)(4)](2)[Co(H2O)(5)](2)WZn[Co(H2O)](2)-(ZnW9O34)( 2)}center dot 10H(2)O (1), which has been characterized by TGA, IR, PXRD, element analysis and single crystal X-ray diffraction. The polyanion [WZn{Co(H2O)}(2)(ZnW9O34)(2)](12-) in 1 is double-linked by cobalt(II) cations to extend into a 1D anionic polymeric chain of {[Co(H2O)(4)](2)[Co(H2O)(5)](2)WZn-[Co(H2O)](2)(ZnW9O34)(2)}(4-) with partial free cobalt cations. The redox active cobalt(II) sites made compound 1 an excellent catalyst for the oxidation of styrene with high styrene conversion (up to 96%) and high benzaldehyde selectivity (up to 99%).
机译:[Na-12(H2O)(38)] [WZn {M(H2O)}(2)(ZnW9O34)(2)]中心点3H(2)O(M = Mn,Co)和Co(NO3 )(2)中心点6H(2)O在80摄氏度的水中,得到[Co(H2O)(6)](2){[Co(H2O)(4)](2)[Co(H2O)的红色晶体)(5)](2)WZn [Co(H2O)](2)-(ZnW9O34)(2)}中心点10H(2)O(1),已通过TGA,IR,PXRD,元素分析进行​​了表征和单晶X射线衍射。 1中的聚阴离子[WZn {Co(H2O)}(2)(ZnW9O34)(2)](12-)通过钴(II)阳离子双键连接以延伸到{[Co(H2O )(4)](2)[Co(H2O)(5)](2)WZn- [Co(H2O)](2)(ZnW9O34)(2)}(4-)带有部分游离钴阳离子。氧化还原活性钴(II)位使化合物1成为苯乙烯氧化的极佳催化剂,具有高的苯乙烯转化率(高达96%)和高的苯甲醛选择性(高达99%)。

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