6533b830fe1ef96bd1296f41

RESEARCH PRODUCT

Field-induced slow relaxation of magnetization in a mononuclear Co(II) complex of 2,6-bis(pyrazol-1-yl)pyridine functionalized with a carboxylic acid

Miguel Clemente-leónVíctor García-lópezMario Palacios-corellaEugenio CoronadoF.j. Orts-mulaJuan M. Clemente-juan

subject

chemistry.chemical_classification010405 organic chemistryCarboxylic acidRelaxation (NMR)Spin transitionchemistry.chemical_element010402 general chemistry01 natural sciences0104 chemical sciencesInorganic ChemistryCrystallographyMagnetizationchemistry.chemical_compoundMagnetic anisotropychemistrySpin crossoverPyridineMaterials ChemistryPhysical and Theoretical ChemistryCobalt

description

Abstract Combining Co(II) with the 2,6-bis-(pyrazol1-yl)pyridine ligand functionalized with a carboxylic acid group (bppCOOH) results in the compound [CoII(bppCOOH)2](ClO4)2·2Me2CO, which shows a field-induced slow relaxation of magnetization as a result of the magnetic anisotropy of the distorted octahedral coordination of high-spin Co(II). Co(II)/Fe(II) solid solutions of bppCOOH have been prepared to study the influence of Co(II) on the spin crossover properties of Fe(II). Magnetic characterization of [Fe0.92Co0.08(bppCOOH)2](ClO4)2 indicates that the Cobalt dopant leads to a reduction of T1/2 and a loss of cooperativity of the spin transition.

yearjournalcountryeditionlanguage
2018-08-01Polyhedron
https://doi.org/10.1016/j.poly.2018.05.006