Synthesis and structure of dilacunary decatungstogermanate, [gamma-GeW10O36]8-.
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.
Nsouli
Nadeen H
NH
International University Bremen, School of Engineering and Science, P.O. Box 750 561, 28725 Bremen, Germany.
Bassil
Bassem S
BS
Dickman
Michael H
MH
Kortz
Ulrich
U
Keita
Bineta
B
Nadjo
Louis
L