Abstract

Two new ion-pair complexes, [NO 2BrBzIm] 2[Ni(mnt) 2] 1, [NO 2BrBzIm][Ni(mnt) 2] 2, where [NO 2BrBzIm] +=1-methyl-3-(2′-nitro-4′-bromobenzyl)imidazolium, mnt 2−=maleonitriledithiolate, have been synthesized and characterized by elemental analysis, IR spectroscopy, UV-visible spectroscopy and X-ray crystallography. The single crystal structure analyses show that in the dianionic complex 1 cations and anions are intermingled each other and stacked along the c-axis with an ACCACC-type repeat unit, whereas the monoanionic complex 2 forms a well-segregated stacking column structure in the solid state.

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