首页|Formation of polynuclear iron(III) complexes of N-(2-pyridylmethyl)iminodipropanol depending on pseudohalide ions: synthesis, crystal structure, and magnetic properties
Formation of polynuclear iron(III) complexes of N-(2-pyridylmethyl)iminodipropanol depending on pseudohalide ions: synthesis, crystal structure, and magnetic properties
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NSTL
Elsevier
? 2022 The Korean Society of Industrial and Engineering ChemistryFive polynuclear iron(III) complexes, [(pmidp)Fe(NCSe)]2 (1), [(pmidp)Fe(NCBH3)]2 (2), [(Hpmidp/pmidp)Fe3(CH3O)2(NCS)4]?H2O (3), [(pmidp)2Fe6(CH3O)4(N3)4(CH3COO)2O2] (4), and [(pmidp)2Fe6(CH3O)4(NCO)4(CH3COO)2O2]?2MeOH (5) were isolated through the reactions of N-(2-pyridylmethyl)iminodipropanol (H2pmidp) and iron(III) ions with different pseudohalide ions. The complexes were studied via X-ray crystal diffraction, M?ssbauer spectra, and magnetochemistry. The molecular structures of 1 and 2 were formed as the {Fe2(μ2-Opropoxo)2}2+ cores with pmidp2? and NCSe?/NCBH3?. The structure of 3 was formed as a {Fe3(μ2-OCH3)2(μ2-Opropoxo)4}5+ core with Hpmidp?/pmidp2? and NCS?. The structures of 4 and 5 were formed as {Fe6(μ4-O)2(μ2-OCH3)2(η2-OAc)2(μ2-Opropoxo)4} cores with pmidp2? and NCO?/N3?. Structural analyses revealed that the formation of various multinuclear iron(III) moieties depends on the auxiliary ligands. The oxidation states of all the complexes were confirmed as + 3 using the bond valence sum (BVS) calculations and M?ssbauer spectral data. The susceptibility data for 1–5 fitted using each spin coupling (J) model indicated that 1–3 showed antiferromagnetic exchange interactions, and 4 and 5 showed the ferromagnetic and antiferromagnetic couplings, simultaneously.
Crystal engineeringIron(III) ionMagnetic propertiesMultinuclear compoundPseudohalide ion
Shin H.J.、Min K.S.、Jang Y.J.、Zenno H.、Hayami S.
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Department of Chemistry Education Kyungpook National University
NSTL
Elsevier
