Jin-ye Chen, Yun-li Liu, Wei-Quan Xu
Jul 26, 2011
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Influential Citations
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Journal
Journal of Coordination Chemistry
Abstract
The reaction of 2-t-butyl-4-ethylphenol, formaldehyde, and 2-amino propanol or 3-amino-1-propanol at 2 : 2 : 1 provides N-(1-ethanol)-N,N-bis(3-t-butyl-5-ethyl-2-hydroxybenxyl)amine (H3L′) and N-(3-amino-1-propanol)-N,N-bis(3-t-butyl-5-ethyl-2-hydroxybenxyl)amine (H3L″), respectively. In the presence of Et3N, the reaction of FeCl3 · 6H2O and H3L′ or H3L″ gives dinuclear Fe(III) complexes [ ] 1 and [ ] 2, respectively, which have been characterized by X-ray crystallography, magnetic measurements, and cyclic voltammetry (CV). Magnetic studies indicate significant antiferromagnetic coupling between the iron(III) centers for 1 and 2. The values obtained for the coupling constants (J) are −12.35 cm−1 for 1 and −16.26 cm−1 for 2. CVs of 1 and 2 reveal one reversible wave at −0.80 and −0.82 V versus AgCl/Ag, respectively, which can be ascribed to redox coupling of FeIIIFeII/FeIIIFeIII.