高等学校化学学报

高等学校化学学报 ›› 1995, Vol. 16 ›› Issue (1): 5.

• 论文 • 上一篇    下一篇

α-一铌二钼十五钨磷杂多酸盐的合成和性质研究

瞿伦玉1, 龚剑1, 彭君1, 孙绍仁1, 张建国2   

  1. 1. 东北师范大学化学系, 长春 130024;
    2. 中国科学院长春应用化学研究所
  • 收稿日期:1994-01-31 修回日期:1994-06-03 出版日期:1995-01-24 发布日期:1995-01-24
  • 通讯作者: 瞿伦玉,女,59岁,教授.
  • 作者简介:瞿伦玉,女,59岁,教授.
  • 基金资助:

    国家自然科学基金

Synthesis and Properties of α-Molybadotungstoniobic Diphosphates

OU Lun-Yu1, GONG Jian1, PENG Jun1, SUN Shao-Ren1, ZHANG Jian-Guo2   

  1. 1. Department of Chemistry, Northeast Normal University, Changchun, 130024;
    2. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun
  • Received:1994-01-31 Revised:1994-06-03 Online:1995-01-24 Published:1995-01-24

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摘要： 合成了通式为α-M7-xHx[P2W15Mo2NbO62]·xH2O[M=K+,(CH3)4N+,(C2H5)4N+,(C4H9)4N+]的4种盐。用IR、UV吸收光谱、极谱、183WNMR、XPS和XRD等方法对其进行了表征,确认三取代的位置是在Dawson结构的同一"极位".研究了取代W原子数目对183WNMR化学位移的影响,发现"极位"W原子的183WNMR化学位移平均值与取代原子数目呈线性关系。

关键词: Dawson结构, 183WNMR, 铌钼钨磷酸盐

Abstract: Four kinds of new molybdotungstoniobic diphosphates with the Dawson structure, formulated as α-P2W15Mo2NbO , are prepared and characterized by IR, UVspectra,polarography and 183WNMR which show that the same "polar" Watoms in the Dawson frames are substituted. The mean value of 183W chemical shifts of the "polar" group varies linearly with the number of substituted atoms in the opposite polar group.

Key words: Dawson structure, 183WNMR, Molybdotungstoniobic diphosphate

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