Heteropolymetalate

<p>The heteropolymetalates are a subset of the <a href="/facts/Polyoxometalate/mr1AkgR5">polyoxometalates</a>, which consist of three or more <a href="/facts/Transition_metal/0slGWoLQ">transition metal</a> <a href="/facts/Oxyanion/0GuWXr6D">oxyanions</a> linked together by shared <a href="/facts/Oxygen/acyn6o8r">oxygen</a> atoms to form a closed 3-dimensional molecular framework. In contrast to isopolymetalates, which contain only one kind of metal atom, the heteropolymetalates contain differing <a href="/facts/Main_group/2AG3QxJl">main group</a> oxyanions. The metal atoms are usually <a href="/facts/Group_6_element/s8cA1Rwd">group 6</a> (Mo, W) or less commonly <a href="/facts/Group_5_element/C08aMlur">group 5</a> (V, Nb, Ta) transition metals in their highest <a href="/facts/Oxidation_state/W53W6s6V">oxidation states</a>. They are usually colorless to orange, <a href="/facts/Diamagnetic/dgFavn9K">diamagnetic</a> anions. For most heteropolymetalates the W, Mo, or V, is complemented by main group oxyanions <a href="/facts/Phosphate/FDGVCxUG">phosphate</a> and <a href="/facts/Silicate/7NdthSRM">silicate</a>. Many exceptions to these general statements exist, and the class of compounds includes hundreds of examples.
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Heteropolymetalate open-in-new

Heteropolymetalate