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This paper reports the synthesis, properties and structure of (NH_4)_(12)[Cu_3(H_2O)_3(SbW_9O_33)_2]·11H_2O. The compound was prepared by the depolymerization reaction of (NH4_)_(18)[(NH_4)Sb_9W21O_(86)].nH_2O,which was proposed firstly as a method of preparing new heteropoly tungstoantimonate(Ⅲ).Its properties were characterized by IR, Raman, UV-VS spectra, TG-DTA thermal analysis, andX-ray single ctystal analysis. The crystal is orthorhombic, with space group D_(2h)~(16)-Pnma. The crystaldata are: a=15.423(4), b=19.307(6), c=30.275(6), V=9015.0~3, Z=4, Dc=3.881 g/cm_3. Thestructure has been refined by full-matrix least squares method to a final R factor of 0.064 for 2652reflections collected at room temperature. The heteropoly anion contains two a-B-SbW_9O_(33)subunits joined by three square-pyramidal CuO_4(OH_2).
This paper reports the synthesis, properties and structure of (NH 4) _ (12) [Cu_3 (H_2O) _3 (SbW_9O_33) _2] · 11H_2O. The compound was prepared by the depolymerization reaction of (NH 4 _) _ (18) ) Sb_9W21O_ (86)]. NH_2O, which was proposed initially as a method of preparing new heteropoly tungsto antimonate (III). Its properties were characterized by IR, Raman, UV- VS spectra, TG- DTA thermal analysis, and X- ray single ctystal The crystal is orthorhombic with space group D_ (2h) ~ (16) -Pnma. The crystal data are: a = 15.423 (4), b = 19.307 (6), c = 30.275 (6), V = 9015.0 ~ 3, Z = 4, Dc = 3.881 g / cm_3. Thestructure has been refined by full-matrix least squares method to a final R factor of 0.064 for 2652reflections collected at room temperature. The heteropoly anion contains two aB-SbW_9O_ (33) subunits joined by three square-pyramidal CuO_4 (OH_2).