Summary: | The title molecule, C18H14N6O4S, adopts a U-shape with the aromatic groups lying syn and oriented in the same direction as the thiophene S atom. Twists away from planarity are evident with the maximum deviation being found for a terminal nitro group: C/C/N/O = 19.0 (3)°. The conformation about each of the C=N bonds is E. In the crystal, centrosymmetrically related molecules are connected via N—H...Onitro hydrogen bonds, forming 14-membered {...HNC3NO}2 synthons. These are linked into layers via C—H...Onitro interactions with the primary interactions between layers being of the type C—H...π, where the π-system is the thiophene ring.
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