Crystal structure, Hirshfeld surface analysis and DFT studies of tetrakis(μ-3-nitrobenzoato-κ<sup>2</sup> <i>O</i> <sup>1</sup>:<i>O</i> <sup>1′</sup>)bis[(<i>N</i>,<i>N</i>-dimethylformamide-κ<i>O</i>)copper(II)] dimethylformamide disolvate
Acta crystallographica. Section E, Crystallographic communications