METHYLPYRAZOLE)(N-SALICYLIDENEGLYCINATO)COPPER(II)

dimethylpyrazole-N-1)(N-salicylideneglycinato-O,N, O')copper(II), [CU( C9H7NO3)(C5H8N2)(H2O)], adopts a square-pyramidal Cu-II coordination w ith the tridentate N-salicylideneglycinato Schiff base dianion and the 3,5-dimethylpyrazole ligand bound in the basal plane. The water molec ule occupies the apical site. The complex molecules are arranged in fo ur magnetically non-equivalent orientations, two at a time forming zig zag chains. Both the interchain Cu...Cu spacing of 7.396 Angstrom and the intrachain Cu...Cu distance of 6.880 Angstrom are too large for ef fective dipolar coupling between the paramagnetic Cu-II centres, in ag reement with the results of electron paramagnetic resonance (EPR) spec troscopy.