High-Spin Mononuclear Iron(III) Complexes with Pentadentate Schiff Base Ligands: Structural Analysis and Magnetic Properties.

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ID: 91082
2019
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Abstract
Various substituted 2-hydroxybenzophenones were combined with aliphatic linear triamines to form pentadentate Schiff base ligands. Twelve new iron(III) complexes with the general formula [Fe(L )X].mCH CN (n=1-10; X=N , NCS or NCSe ; m=0-2) have been synthesized, and spectrally as well as structurally characterized. The structural analysis revealed a notable dependence of coordination polyhedra deformation as well as the spatial configuration of donor atoms on the length and symmetry of the Schiff base ligands. The magnetic properties of the compounds were investigated and the permanent high-spin state (S=5/2) for all reported compounds was established, and allowed calculation of zero-field-splitting parameters as well as coupling constants, which were further confirmed with DFT calculations. The solid-state EPR spectra were recorded at 293 K and 98 K, and in accordance with the magnetic measurements, showed a high-spin state in the measured temperature range.
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pogny2019highspinchempluschem Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Pogány, Lukáš;Moncol, Ján;Pavlik, Ján;Mazúr, Milan;Šalitroš, Ivan;
Journal chempluschem
Year 2019
DOI
10.1002/cplu.201800658
URL
Keywords
density functional calculations magnetic properties schiff bases n,o-ligands iron(iii) complexes

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