Thursday, August 9, 2018

inorganic chemistry - Oxidation state of iron ions in a unit cell


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Consider UC (unit cell) for a cubic ionic lattice containing 4 oxide ions - what is the avg oxidation state for Fe ions in this lattice?



The four oxide ions create a -8 charge that must be counteracted by the iron ions. In a FCC unit cell, there are 3 total Fe ions per UC; therefore each ion must have a +8/3rds oxidation state.


Is this correct?




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