Synthesis, characterization and magnetic properties of mixed-valence iron complexes with 2-pyridyl oximes

COMPLEJOS DE HIERRO

PROPIEDADES MAGNETICAS

BIBLIOGRAFIA NACIONAL QUIMICA

2018

wo new mixed-valence iron complexes with 2-pyridyl oximes, [Fe(mpko)3Fe(H2O)2(NO3)](NO3)·2H2O (1) (mpko− = methyl(2-pyridyl)ketone oximate) and [{Fe(dpko)3}2Fe](ClO4)·4H2O (2) (dpko− = bis(2-pyridyl)ketone oximate), have been prepared by reaction of FeIII with mpkoH in methanol (1) and FeII with dpkoH in methanol/water (2). Dinuclear FeII(low-spin)FeIII(high-spin) and trinuclear FeII(low-spin)FeIII(high-spin)FeII(low-spin) cations are present in the crystal structure of 1 and 2, respectively. Intermolecular hydrogen bonds in 1 lead to weak antiferromagnetic interactions between pairs of neighboring FeIII centers, which allows observation of single-ion zero-field splitting effects. Keywords: Iron(II)/(III) complexes, methyl(2-pyridyl)ketone oxime, bis(2-pyridyl)ketone oxime, magnetic exchange mediated by hydrogen bonds, crystal structure Sample our Engineering & Technology journals, sign in here to start your access, latest two full volumes FREE to you for 14 days Publish open access with the Journal of Information and Telecommunications Sign up today for updates in your subject People also read Article Cu(II) complexes of cytosine and 1-methylcytosine with bromide: old motifs and new structures Rosaria Bruno et al. Journal of Coordination Chemistry Volume 71, 2018 - Issue 5 Published online: 23 Feb 2018 Article Structural studies on Ba(II) adducts of the cytosine nucleobase and its derivative 1-Methylcytosine Nadia Marino et al. Journal of Coordination Chemistry Volume 71, 2018 - Issue 6 Published online: 23 Feb 2018 Article Hexakis(dimethylformamide)iron(II) complex cation in hexahalorhenate(IV)-based salts: synthesis, X-ray structure and magnetic properties Carlos Rojas-Dotti et al. Journal of Coordination Chemistry Volume 71, 2018 - Issue 6 Published online: 19 Jan 2018 Article Iron(II) complex of 2-(1H-pyrazol-1-yl)pyridine-4-carboxylic acid (ppCOOH) suitable for surface deposition Víctor García-López et al. Journal of Coordination Chemistry Volume 71, 2018 - Issue 6 Published online: 5 Feb 2018 Article A Zn(II) luminescent complex with a Schiff base ligand: solution, computational and solid state studies Sebastián Martínez et al. Journal of Coordination Chemistry Volume 71, 2018 - Issue 6 Published online: 19 Feb 2018 Article Magneto-structural correlations in asymmetric oxalato-bridged dicopper(II) complexes with polymethyl-substituted pyrazole ligands M. Luisa Calatayud et al. Journal of Coordination Chemistry Volume 71, 2018 - Issue 5 Published online: 12 Jan 2018

Journal of Coordination Chemistry  v. 71, no. 6, 2018. -- p. 748-762

Taylor & Francis

2018

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DOI:10.1080/00958972.2018.1441405

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