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化学学报
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化学学报 ›› 1991, Vol. 49 ›› Issue (5): 473-476. 上一篇    下一篇

研究论文

含铁杂多酸盐Mossbauer谱研究 IV: 钼磷铁杂多酸盐的合成和Mossbauer谱

于志刚;王占文   

  1. 青岛海洋大学化学系;南京化工学院应化系
  • 发布日期:1991-05-15

The Mossbauer spectra study of heteropolyanion containing iron IV: The preparation and mossbauer spectra of 11-molybdoferriphosphate

YU ZHIGANG;WANG ZHANWEN   

  • Published:1991-05-15

PDF

309

被引次数

5

合成了钼磷铁杂多黄(NH4)4[PFeMo11O40H2]·9H2O和杂多蓝(NH4)4[PFeMo11O40H3]·11H2O的铵盐晶体, 用^5^7Fe同位素增丰Mossbauer谱法, 结合磁化率测定, 研究其结构与性质, 并讨论了四极分裂值Q2和Keggin结构杂多阴离子中MO6(M=Mo, Fe)八面体畸变大小的关系, 进一步证实Keggin结构杂多蓝阴离子中Mo(V)-O-Fe(III)间存在反磁交换作用。

关键词: 杂多酸, 钼酸盐, 磷酸盐, 铁酸盐, 氯乙酸, 穆斯堡尔谱法, 胺盐

(NH4)4(PFeIIIMoVI11O40H2).9H2O (yellow) and (NH4)4(PFeIIIMoVMoVI10O40H3).11H2O (blue) were synthesized. The Moessbauer spectra of the 2 heteropoly acid salts were determine using 57Fe isotropic enrichment. The IR spectra and magnetic susceptibility were obtained. Splitting Qs can be used as an indication of distortion degree of MO6 (M = Mo, Fe) octahedra in Keggin structures. There is super exchange interaction between MoV and FeIII through Mo(V)-O-Fe(III) bridge in Keggin structure.

Key words: HETEROPOLYACID, MOLYBDATE, PHOSPHATE, FERRATE, CHLOROACETIC ACID, MOSSBAUER SPECTROMETRY, AMINE SALT

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