Acta Chimica Sinica ›› 2002, Vol. 60 ›› Issue (11): 2022-2028. Previous Articles     Next Articles

Original Articles

夹心型杂多化合物Na_9[CeW_(10)O_(36)]·34H_2O的合成及晶体结构

薛岗林;刘斌;王文亮;李谦定;李恒新   

  1. 西北大学化学系,西安(710069);陕西师范大学化学系,西安(710062);西安石 油学院石油化工系,西安(710065)
  • 发布日期:2002-11-15

Synthesis and Crystal Structure of Na_9[CeW_(10)O_(36)]·34H_2O

Xue Ganglin;Liu Bin;Wang Wenliang;Li Qianding;Li Hengxin   

  1. Department of Chemistry, Northwest University, Shaonxi Key Laboratory of Physico-Inorganic Chemistry,Xian(710069);Department of Chemistry, Shaanxi Normal University,Xian(710062);Department of Petroleum and Chemistry, Xian Petroleum College,Xian(710065)
  • Published:2002-11-15

The heteropolytungstate Na_9[CeW_(10)O_(36)]·34H_2O is obtained by the reaction of Na_2WO_4·2H_2O with Ce(NO_3)_3·6H_2O in pH ≈ 6.5 and in the presence of NaAsO_2 and Co(NO_3)_3·6H_2O. The structure and chemical composition are determined by X-ray diffraction analysis and elemental analysis. The crystal is triclinic, space group: P1 with a = 1.3010 (5) nm, b = 1.3072 (5) nm, c = 1.9962 (8) nm, α = 101.073 (7) °, β= 104.411 (5) °, γ = 90.473 (4) °, V = 3.211 (2) nm~3, Z = 4, R_1 = 0.0424, wR_2 = 0.0549 [1 > 2σ(I)], R_1 = 0.1357, wR_2 = 0. 0808 (all data). [CeW_(10)O_(36)]~(9-) has D_(4d) symmetry.

Key words: HETEROPOLYACID, TUNGSTATE, CRYSTAL STRUCTURE, CERIUM COMPOUNDS, TUNGSTEN COMPOUNDS

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