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Manganese in large numbers: The largest number of manganese ions ever incorporated in a polyoxometalate (POM) is found in a planar Mn19-oxo-hydroxo magnetic cluster incorporated in a discrete 60-tungsto-6-silicate (see structure Mn yellow, O red/pink). The compound has interesting structural, magnetic, and electrochemical properties.
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Bassil et al. (2011) studied this question.
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