1,3-Bis(2-quinolylcarbonyl)-1H,3H-2,1,3-benzothiadiazole 2-oxide

Abstract

In the title compound, C26H16N4O3S, the thiadiazole ring adopts an envelope conformation, with the S atom occupying the flap position. The dihedral angle between the two quinoline ring systems is 55.32 (8)°. In the crystal, the molecules are linked into chains along [010] by C—H...O hydrogen bonds. The chains are connected via π–π interactions involving one of the pyridine rings [centroid–centroid distance = 3.5558 (18) Å].