Structures And Magnetic Properties Of Functional Complexes With Azide

The design and synthesis of metal-azide complexes is one of the most attractive field in the molecular-based magnetic materials. In order to investigate the correlation between the structure and magnetic properties, five complexes have been synthesized and characterized by element analyses, IR and variable-temperature magnetic susceptibility.A 2D copper(â…¡) coordination polymer [Cu₂(anol)₂(μ_1,3-N₃)₂]_n (where anol = 2-aminoethanol) have been synthesized by the reaction of Cu(ClO₄)₂·6H₂O, NaN₃ and 2-aminoethanol. In similar reaction condition, using Co(ClO₄)₂·6H₂O instead of Cu(ClO₄)₂·6H₂O, a dinuclear cobalt (â…¢) complex [Co₂(anol)₃(N₃)3] was obtained. A novel trinuclear Cu(â…¡) complex [Cu₃(sae)₂(mtta)(N₃)] (mtta = 5-methyltetrazole, sae = Salicylidene-2-aminoethanol) was prepared by reaction of NaN₃, CH₃CN, Salicylidene-2-aminoethanol and Cu(ClO₄)₂·6H₂O. Two complexes with same formular and different space group have been synthesized by the reaction of [Mn₃O₄(phen)₄(H₂O)₂](NO₃)₄ ? 2.5H₂O with NaN₃ in water.