4,4′-Bis[2-(benzylsulfanyl)phenylhydrazono]-2,2′-binaphthalene-1,1′(4H,4′H)-dione

Abstract

The crystal structure of the title compound, C46H34N4O2S2, shows that the mol­ecules exist in the hydrazone form and not the azo form. The title compound is actually a centrosymmetric dimer of 3-dehydro-1-[2-(benzyl­sulfan­yl)phenyl­hydra­zono]naphthalene-4-one connected through the C-3 position of the naphthalene unit. The hydrazone H atom and the sulfanyl S atom are linked by an intra­molecular N—H⋯S hydrogen bond. In each mol­ecule, there are two intra­molecular C—H⋯O inter­actions. The crystal packing is stabilized by three weak inter­molecular π–π inter­actions; the centroid–centroid distances are 3.808 (2), 3.955 (2) and 3.955 (2) Å; the corresponding perpendicular distances are 3.481, 3.535 and 3.584 Å.