Photoswitching of the antiferromagnetic coupling in an oxamato-based dicopper(II) anthracenophane

Photoswitching of the antiferromagnetic coupling in an oxamato-based dicopper(II) anthracenophane

Thermally reversible photomagnetic (ON/OFF) switching behavior has been observed in a dinuclear oxamatocopper(II) anthracenophane upon UV light irradiation and heating; the two Cu(II) ions (S(Cu) = 1/2) that are antiferromagnetically coupled in the dicopper(II) metallacyclic precursor (ON state) bec...

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Veröffentlicht in:Chemical communications (Cambridge, England) England), 2011-01, Vol.47 (39), p.11035-11037
Hauptverfasser: Castellano, María, Ferrando-Soria, Jesús, Pardo, Emilio, Julve, Miguel, Lloret, Francesc, Mathonière, Corine, Pasán, Jorge, Ruiz-Pérez, Catalina, Cañadillas-Delgado, Laura, Ruiz-García, Rafael, Cano, Joan
Format: Artikel
Sprache:eng
Schlagworte:
Antiferromagnetism
Chemical Sciences
Heating
Joining
Light irradiation
Material chemistry
Precursors
Switching
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Beschreibung
Zusammenfassung:Thermally reversible photomagnetic (ON/OFF) switching behavior has been observed in a dinuclear oxamatocopper(II) anthracenophane upon UV light irradiation and heating; the two Cu(II) ions (S(Cu) = 1/2) that are antiferromagnetically coupled in the dicopper(II) metallacyclic precursor (ON state) become uncoupled in the corresponding [4+4] photocycloaddition product (OFF state), as substantiated from both experimental and theoretical studies.
ISSN:1359-7345
1364-548X
DOI:10.1039/c1cc15087a