The initial steps in polymerization to form Prussian Blue is aphoto-initiated reduction of Fe(III) to Fe(II).
i. This is a charge-transfer transition – what kind of chargetransfer transition is it, and what is oxidized? Â
ii. A gas is released as the photo-sensitized mixture isirradiated. What is it?
iii. Why does reduction of the Fe(III) center make the complexmore labile? Explain in terms of CFSE.
