Aqua(3,5-dimethylpyrazole)(N-salicylideneglycinato)copper(II)

Aqua­(3,5-dimethylpyrazole-N¹)(N-salicylideneglycinato-O,N,O′)copper(II), [Cu(C₉H₇NO₃)(C₅H₈N₂)(H₂O)], adopts a square-pyramidal Cu^II coordination with the tridentate N-salicylideneglycinato Schiff base dianion and the 3,5-dimethylpyrazole ligand bound in the basal plane. The water molecule occupies the apical site. The complex molecules are arranged in four magnetically non-equivalent orientations, two at a time forming zigzag chains. Both the interchain Cu...Cu spacing of 7.396 Å and the intrachain Cu...Cu distance of 6.880 Å are too large for effective dipolar coupling between the paramagnetic Cu^II centres, in agreement with the results of electron paramagnetic resonance (EPR) spectroscopy.

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