Chem. J. Chinese Universities ›› 1990, Vol. 11 ›› Issue (3): 316.
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Zhang Baojian1, Qu Lunyu1, Su Guifen2, Li Zhongmin2, Liu Shangui2
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Abstract: The M?ssbauer spectra of the triferricononatungstosilicate isomers α and β-(Et4N)3.5Na2.5H-[SiW9Fe3(H2O)3O37] · xH2Owere determined. The Mossbauer parameters are as follows:δ=0. 198 mm · s-1, ΔEQ=0. 441 mm · s-1 for the α-isomer; δFea' = 0.190 mm · s-1,δFeb', = 0. 133 mm · s-1, ΔEQFea', = 1.197 mm · s-1, ΔEQFeb', = 0. 446 mm · s-1 for the β-isomer. The structures and bonds of the compounds were disscussed according to the Mdssbauer and XPSspectra as well as their magnetic moments. Both α and β isomers are all B-structure, which shows that A→Bstructure rearrangement occurred in the synthesizing process of the β-isomer.
Key words: Triferricononatungstosilicate, Lsomer, Mossbauer spectra
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Zhang Baojian, Qu Lunyu, Su Guifen, Li Zhongmin, Liu Shangui. Studies on Iron(Ⅲ) Heteropolytungstosillcates with M?ssbauer Spectra ( Ⅱ ) —Trisubstituted Heteropolytungstosilicate isomers[J]. Chem. J. Chinese Universities, 1990, 11(3): 316.
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http://www.cjcu.jlu.edu.cn/EN/Y1990/V11/I3/316
