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Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry Volume 30, 2000 - Issue 6
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Original Articles

The Preparation and Characterization of Two New Heteropolyoxotungstate Anions, Na12[Co6W18O70H8]·39 H2O and Na12[Fe6W18O70H2·26 H2O

Sadiq H. Wasfi Department of Chemistry, Delaware State University, Dover, DE, 19901
,
W. Leo Johnson III Department of Chemistry, Delaware State University, Dover, DE, 19901
&
Sun McMasters Department of Chemistry, Delaware State University, Dover, DE, 19901
Pages 1083-1097 | Received 06 Sep 1999, Accepted 09 Mar 2000, Published online: 28 Apr 2008
 
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Abstract

The sodium salts of two heteropoly anions, [Co6W18O70H8]12- and [Fe6W18O70H2]12-, have been isolated in the crystalline form. Evidence from chemical analyses. Fast Atom Bombardment mass spectroscopy (FABMS), infrared spectroscopy (IR), ultraviolet spectroscopy (UV), visible spectroscopy, and cyclic voltammetry support the above formulations. The structure of these anions is believed to be similar to the Weakley structure in which two half Keggin structures sandwich between them four metal ions of octahedral coordination.

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