3-Fluoro-12H-benzimidazo[2,1-b][1,3]benzothia­zin-12-one

In the title compound, C(14)H(7)FN(2)OS, prepared by the reaction of 2-bromo-4-fluoro­benzoyl choride with 2-mercaptobenzimidazole, the four-membered fused-ring system is essentially planar [maximum deviation from the mean plane = 0.035 (2) Å]. The crystal packing is stabilized by weak inter­molecular π–π [minimum ring centroid–centroid separation = 3.509 (7) Å], weak C—F⋯π [F⋯centroid = 3.4464 (17) Å, C—F⋯centroid = 97.72 (11)°] and C—O⋯π [O⋯centroid = 3.5230 (16) and 3.7296 (17) Å, C—O⋯centroid = 86.40 (10) and 86.25 (10)°] inter­actions and weak inter­molecular C—H⋯N hydrogen bonds.