LAUSR

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. 9 K; τ0 = 6.6 × 10−10) and 2 (ΔE = 54 and 49.7 K; τ0 = 1.4 × 10−12 s and 7.6 × 10−12 s) exhibit SCM behavior with a slight difference in magnetic properties due to the only difference in coordinated/non-coordinated solvents.