Synthesis and structure of dilacunary decatungstogermanate, [gamma-GeW10O36]8- |
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Authors: | Nsouli Nadeen H Bassil Bassem S Dickman Michael H Kortz Ulrich Keita Bineta Nadjo Louis |
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Institution: | International University Bremen, School of Engineering and Science, P.O. Box 750 561, 28725 Bremen, Germany. |
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Abstract: | The dilacunary decatungstogermanate gamma-GeW10O36]8- (1) has been synthesized and structurally characterized in solution and in the solid state. Reaction of germanium dioxide with sodium tungstate in aqueous acidic medium results in the formation of beta2-GeW11O39]8- (2), which is then used as a precursor for the synthesis of 1. The (183)W spectrum of 2 shows the expected 11 peaks of equal intensity, whereas that of 1 exhibits the expected three peaks with relative intensities 2:2:1. Polyanion 1 represents a novel lacunary polyoxometalate, giving rise to a multitude of derivatives by reaction with transition metals, lanthanides, and other electrophiles. |
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