The eight-membered ring in the title compound, C16H12Cl2N2S2, adopts a
non-planar conformation as expected, and the least-squares planes of
the 4-substituted aromatic ring form a dihedral angle of 83.3(2)degree
s as a result of steric constraints. The molecular dimensions are of g
eneral interest for comparison with structural data of analogous compo
unds.