Three-dimensional supramolecular structures in (<i>E</i>,<i>E</i>)-<i>N</i>,<i>N</i>′-bis(4-nitrobenzylidene)butane-1,4-diamine and (<i>E</i>,<i>E</i>)-<i>N</i>,<i>N</i>′-bis(4-nitrobenzylidene)hexane-1,6-diamine
Acta crystallographica. Section C, Crystal structure communications/Acta crystallographica. Section C, Crystal structure communications.