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The title compounds, (imidazole-N3)(N-salicylideneglycinato-O,N,O')copper(II), [Cu(C9H7NO3)(C3H4N2)], (I), and (2-ethylimidazole-N3)(N-salicylideneglycinato-O,N,O')copper(II), [Cu(C9H7NO3)(C5H8N2)], (II), adopt square-pyramidal CuII coordination with the tridentate N-salicylideneglycinato Schiff base dianion and the imidazole ligand bound in the basal plane. In both structures the apex of the distorted pyramid is occupied by a carboxylic O atom from the neighbouring chelate at an apical distance of 2.563 (2) and 2.683 (2) Å, in (I) and (II), respectively, thus building infinite zigzag chains. According to the electron paramagnetic resonance patterns, in compound (I) the CuII complexes are arranged in two and in compound (II) in four magnetically inequivalent orientations.

Supporting information

cif

Crystallographic Information File (CIF)
Contains datablocks I, II, global

fcf

Structure factor file (CIF format)
Contains datablock I

fcf

Structure factor file (CIF format)
Contains datablock etim97

CCDC references: 129309; 129310

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