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化学学报
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化学学报 ›› 1995, Vol. 53 ›› Issue (9): 871-877. 上一篇    下一篇

研究论文

铌取代Dawson结构钨磷杂多配合物的合成及其结构表征

瞿伦玉;龚剑;王富权;陈亚光;张建国   

  1. 东北师范大学化学系;中国科学院长春应用化学研究所
  • 发布日期:1995-09-15

Synthesis and Structural characterization of the dawson-type tungstophosphate heteropoly complexes substituted by niobium

JU LUNYU;GONG JIAN;WANG FUQUAN;CHEN YAGUANG;ZHANG JIANGUO   

  • Published:1995-09-15

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669

被引次数

9 | 3

本文报道了八种新化合物α2-M7-mHm[P2W17NbO62].xH2O, α-1, 2,3-M9-mHm[P2W15Nb3O62].xH2O (M=K, TMA, TEA, TBA)的合成和表征。红外和紫外光谱表明两种阴离子具有Dawson结构, ^3^1P和^1^8^3W NMR测定结果表明铌原子确系"极位"一、三取代。α-1, 2,3-K7H2[P2W15Nb3O62].30H2O为六方晶系, 晶胞参数为: a=1.9836(4), b=1.9836(9), c=1.5498(6)nm, α=β=90°, γ=120°。此外, 还报道了极谱、XPS和XRD结果。

关键词: 紫外分光光度法, 红外分光光度法, 杂多酸, 晶体结构, Ｘ射线衍射分析, 极谱分析, 磷酸盐 P, Ｘ射线光电子谱法, 铌酸盐 P, 钨酸盐 P

Eight new complexes α2-M7-mHm[P2W17NbO62].xH2O, α-1, 2, 3-M9-mHm[P2W15Nb3O62].xH2O (M=K, TMA, TEA, TBA) were synthesized and characterized by IR and UV spectroscopy, polarography, XPS and XRD methods. ^3^1P and ^1^8^3W NMR studies show that the niobium atoms in the anions are on the polar sites. The crystal of α-1,2,3-K7H2[P2W15Nb3O62].30H2O is hexagonal, its cell parameters: a=1.9836(4), b=1.9836(9), c=1.5498(6)nm, α=β=90°, γ=120°.

Key words: ULTRAVIOLET SPECTROPHOTOMETRY, INFRARED SPECTROPHOTOMETRY, HETEROPOLYACID, CRYSTAL STRUCTURE, X-RAY DIFFRACTION ANALYSIS, POLAROGRAPHIC ANALYSIS, PHOSPHATE P, X-RAY PHOTOELECTRON SPECTROMETRY, NIOBATE P, TUNGSTATE P

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