Abstract
[MnIII3(μ3-O)]7+ based EE-azido-bridged 1D chains [{Mn3O(5-Br-salox)3(N3)(H2O)4}·3H2O]n(1) and [{Mn3O(5-Br-salox)3(N3)(H2O)3(DMF)}·2H2O·DMF]n(2) (5-Br-saloxH2=2-hydroxy-5-bromo-benzaldehyde oxime) have been synthesized and characterized by single crystal X-ray diffraction analysis. The complex 1 was synthesized by the reaction between ligand and metal precursor in the presence of azide ion in MeOH, while complex 2 can be obtained in two ways: in the first method, the same reaction as in 1, with only difference in solvent composition – a mixture of solvents DMF/MeOH (2:3/v/v) was used. In another method, 2 was isolated simply by the recrystallization of 1 from DMF. Magnetic studies on these complexes reveal that both 1 (ΔE=45. 9K;τ0=6.6×10−10) and 2 (ΔE=54 and 49.7K; τ0=1.4×10−12s and 7.6×10−12s) exhibit SCM behavior with a slight difference in magnetic properties due to the only difference in coordinated/non-coordinated solvents.
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