Crystal structure and photoluminescence properties of <i>catena</i>-poly[[bis(1-benzyl-1<i>H</i>-imidazole-κ<i>N</i> <sup>3</sup>)cadmium(II)]-di-μ-azido-κ<sup>4</sup> <i>N</i> <sup>1</sup>:<i>N</i> <sup>3</sup>]
Acta crystallographica. Section E, Crystallographic communications