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Synthesis of the Prototypical Cyclic Metallocene Triad: Mixed‐Valence Properties of [(FeCp) 3 (trindenyl)] Isomers
Author(s) -
Santi Saverio,
Orian Laura,
Donoli Alessandro,
Bisello Annalisa,
Scapinello Marco,
Benetollo Franco,
Ganis Paolo,
Ceccon Alberto
Publication year - 2008
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200801124
Subject(s) - chemistry , metallocene , valence (chemistry) , triad (sociology) , fusion , crystallography , spectral line , infrared spectroscopy , stereochemistry , organic chemistry , polymerization , psychology , linguistics , philosophy , physics , astronomy , psychoanalysis , polymer
The “ fusion” of three ferrocenes into a rigid cyclic array produces the syn , syn , anti and syn , syn , syn isomers of [(FeCp) 3 (trindenyl)] (see picture), the cations of which display different mixed‐valence properties, namely multiple intervalence‐transfer (IT) absorptions appear in the near‐IR/IR spectra for the syn , syn , anti isomer, while a single band appears in the visible/near‐IR spectrum for the syn , syn , syn isomer.