6533b836fe1ef96bd12a099c

RESEARCH PRODUCT

On/Off Photoswitching in a Cyanide-Bridged {Fe2Co2} Magnetic Molecular Square

Loïc ToupetMannan SeuleimanYanling LiAbhishake MondalRodrigue LescouëzecMarylise Buron-le CointeMiguel Julve

subject

CyanideINDUCED ELECTRON-TRANSFERTRANSITIONSRELAXATION010402 general chemistryPhotochemistry01 natural sciencesBiochemistryCOBALT-IRON CYANIDECatalysisPHOTOINDUCED MAGNETIZATIONParamagnetismchemistry.chemical_compoundElectron transferColloid and Surface ChemistryMetastability[SDV.BBM]Life Sciences [q-bio]/Biochemistry Molecular BiologyIrradiationALKALI-METAL-IONPRUSSIAN BLUE ANALOGS010405 organic chemistryChemistryRelaxation (NMR)Photomagnetic effectGeneral Chemistry3. Good health0104 chemical sciencesCOSOLID-STATECrystallographyDiamagnetism

description

International audience; A repeatable bidirectional paramagnetic ↔ diamagnetic photomagnetic effect has been observed in the cyanide-bridged Fe-Co square complex {[Fe{B(pz)(4)}(CN)(3)](2)[Co(bik)(2)](2)}(ClO(4))(2)*3H(2)O [B(pz)(4) = tetrapyrazolylborate, bik = bis(1-methylimidazol-2-yl)ketone]. Magnetic measurements and low-temperature single-crystal X-ray diffraction experiments have shown that a complete electron transfer from the diamagnetic Fe(II)-Co(III) state to the paramagnetic Fe(III)-Co(II) metastable state is induced by 808 nm laser light irradiation, whereas the diamagnetic state is recovered in an almost quantitative yield under irradiation at 532 nm.

yearjournalcountryeditionlanguage
2013-02-06Journal of the American Chemical Society
https://doi.org/10.1021/ja3087467