"Fusion" of three ferrocenes into a rigid cyclic array produces the syn,syn,anti-and syn,syn,syn isomers of (FeCp)3trindenyl whose cations display different mixed valence properties: multiple Intervalence-Transfer (IT) absorptions appear in the near-IR/IR for syn,syn,anti with characteristics indicative of localized-to-delocalized Class II-III behavior, while a single band in the visible/near-IR for syn,syn,syn is in favor of localized Class II behavior.
Synthesis of the prototypical cyclic metallocene triad: mixed-valence properties of [(FeCP)3(trindenyl)] isomers
SANTI, SAVERIO;ORIAN, LAURA;DONOLI, ALESSANDRO;BISELLO, ANNALISA;CECCON, ALBERTO
2008
Abstract
"Fusion" of three ferrocenes into a rigid cyclic array produces the syn,syn,anti-and syn,syn,syn isomers of (FeCp)3trindenyl whose cations display different mixed valence properties: multiple Intervalence-Transfer (IT) absorptions appear in the near-IR/IR for syn,syn,anti with characteristics indicative of localized-to-delocalized Class II-III behavior, while a single band in the visible/near-IR for syn,syn,syn is in favor of localized Class II behavior.
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