Syntheses, crystal structures and thermal properties of<i>catena</i>-poly[cadmium(II)-di-μ-bromido-μ-pyridazine-κ<sup>2</sup><i>N</i><sup>1</sup>:<i>N</i><sup>2</sup>] and<i>catena</i>-poly[cadmium(II)-di-μ-iodido-μ-pyridazine-κ<sup>2</sup><i>N</i><sup>1</sup>:<i>N</i><sup>2</sup>]
Acta crystallographica. Section E, Crystallographic communications