Abstract
Recent x-ray diffraction studies have suggested that (3-Cl-anilinium)8[CuCl6]Cl4 exhibits compressed [CuCl6]4− octahedra. We report here the synthesis of the (3-Br-anilinium)8[CuCl6]Cl4 and (3-I-anilinium)8[CuCl6]Cl4 analogs. Their magnetic behavior is quite similar to one another, and in comparison to the chloro compound, the only similarity is that they all exhibit chain magnetism, as evidenced by their broad maxima in the region of 9–12 K. The bromo and iodo compounds do not exhibit the field dependence of the chloro compound, and in this respect, the chloro compound remains unique. For all three compounds, magnetic susceptibility data can be analyzed by the antiferromagnetic one-dimensional Heisenberg model.
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