Crystal structure of poly[bis(μ-2-amino-4,5-dicyanoimidazolato-κ<sup>2</sup><i>N</i><sup>1</sup>:<i>N</i><sup>3</sup>)-<i>trans</i>-bis(<i>N</i>,<i>N</i>′-dimethylformamide-κ<i>O</i>)cadmium]
Acta crystallographica. Section E, Crystallographic communications