The Co Ligand Field: A Key Parameter in Photomagnetic CoFe Prussian Blue Derivatives

The Co Ligand Field: A Key Parameter in Photomagnetic CoFe Prussian Blue Derivatives

Unexpectedly small: The CoII crystal‐field parameter in CoFe Prussian blue analogues is smaller than for any other octahedral CoII(high‐spin) molecular entity and it seems to be determined by the geometry of the Co coordination polyhedron, which is imposed by weak and strong cooperative interactions...

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Veröffentlicht in:Angewandte Chemie International Edition 2005-07, Vol.44 (30), p.4798-4801
Hauptverfasser: Escax, Virginie, Champion, Guillaume, Arrio, Marie-Anne, Zacchigna, Michele, Cartier dit Moulin, Christophe, Bleuzen, Anne
Format: Artikel
Sprache:eng
Schlagworte:
crystal-field parameters
electron transfer
prussian blue analogues
spin crossover
X-ray absorption spectroscopy
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Zusammenfassung:Unexpectedly small: The CoII crystal‐field parameter in CoFe Prussian blue analogues is smaller than for any other octahedral CoII(high‐spin) molecular entity and it seems to be determined by the geometry of the Co coordination polyhedron, which is imposed by weak and strong cooperative interactions within the 3D structure rather than by the chemical nature of the ligands (see picture).
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.200500647