应用化学 ›› 1996, Vol. 0 ›› Issue (5): 70-72.

• 研究简报 • 上一篇    下一篇

过氧铌取代钨磷杂多配合物的稳定性

龚剑1, 魏永慧1, 瞿伦玉3   

  1. 1. 吉林医学院预防医学系 吉林 132001;
    2. 东北师范大学化学系 长春
  • 收稿日期:1995-10-24 修回日期:1996-05-04 出版日期:1996-10-10 发布日期:1996-10-10

Stability of Peroxyniobium-Containing Tungstophosphoric Heteropoly Complexes

Gong Jian1, Wei Yonghui1, Qu Lunyu3   

  1. 1. Department of Protective Medicine, Jilin Medical College, Jilin 132001;
    2. Department of Chemistry, Northeast Normal University, Changchun
  • Received:1995-10-24 Revised:1996-05-04 Published:1996-10-10 Online:1996-10-10

摘要: 近年杂多配合物在新型催化剂的开发,抗病毒以及作为无机离子交换剂等方面取得新进展.含过氧金属离子取代的杂多阴离子在催化以H2O2为氧化剂的烯丙基环氧化反应中具有很高的活性和选择性,由于杂多配合物的性质主要是由其阴离子决定的,因此研究杂多阴离子的稳定性具有重要意义.

关键词: 杂多配合物, 过氧铌取代, Dawson结构, 稳定性

Abstract: Thermal stability of tungstophosphoric heteropoly complexes containing NbO2 with Dawson structure is studied. The total loss of crystallization water occurs below 200℃. The anhydrous acids decompose at 600℃ or so. The XPS determination shows that the electron binding energy of Nb3d5/2 decreases with the increasing number of substituted NbO2 groups.

Key words: heteropoly complex, NbO2 substitution, Dawson structure, stability