4.7 Article

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

Journal

CHEMICAL COMMUNICATIONS
Volume 47, Issue 39, Pages 11035-11037

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c1cc15087a

Keywords

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Funding

  1. MICINN (Spain) [CTQ2010-15364, MAT2010-16981, CSD2007-00010, CSD2006-00015, DPI2010-21103-C04-03]
  2. Generalitat Valenciana (Spain) [PROMETEO/2009/108]
  3. ACIISI-Gobierno Autonomo de Canarias (Spain) [PIL-2070901]
  4. ESRF (France) [HS3902]
  5. MICINN
  6. Generalitat Valenciana
  7. ACIISI-Gobierno Autonomo de Canarias

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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.

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