6533b7dafe1ef96bd126e2e1

RESEARCH PRODUCT

Dicopper(II) Anthraquinophanes as Multielectron Reservoirs for Oxidation and Reduction: A Joint Experimental and Theoretical Study

Rafael Ruiz-garcíaYanling LiYanling LiMaría CastellanoFrancesc LloretDonatella ArmentanoGiovanni De MunnoWdeson P. BarrosWdeson P. BarrosAlvaro AcostaMiguel JulveYves JournauxYves JournauxJoan Cano

subject

Models MolecularInorganic chemistrychemistry.chemical_elementAnthraquinonesElectronsElectron010402 general chemistry01 natural sciencesRedoxCatalysisMetal[CHIM]Chemical SciencesComputingMilieux_MISCELLANEOUSSpintronics010405 organic chemistryChemistryLigandOrganic ChemistryOxidation reductionGeneral ChemistryCopper0104 chemical sciencesCrystallographyvisual_artvisual_art.visual_art_mediumOxidation-ReductionCopper

description

Two new dinuclear copper(II) metallacyclophanes with 1,4-disubstituted 9,10-anthraquinonebis(oxamate) bridging ligands are reported that can reversibly take and release electrons at the redox-active ligand and metal sites, respectively, to give the corresponding mono- and bis(semiquinonate and/or catecholate) Cu(II)2 species and mixed-valent Cu(II)/Cu(III) and high-valent Cu(III)2 ones. Density functional calculations allow us to give further insights on the dual ligand- and metal-based character of the redox processes in this novel family of antiferromagnetically coupled di- copper(II) anthraquinophanes. This unique ability for charge storage could be the basis for the development of new kinds of molecular spintronic devices, referred to as molecular magnetic capacitors (MMCs).

10.1002/chem.201403987https://hal.science/hal-01727621