title: (Z)-2-(4-Chloro-benzyl-idene)benzo[d]thia-zolo[3,2-a]imidazol-3(2H)-one.
abstract: The mol-ecule of the title compound, C(16)H(9)ClN(2)OS, is approximately planar, the dihedral angle between the thia-zolo[3,2-a]benzimidazole ring system and the 4-chloro-phenyl ring being 2.10 (5)°. An intra-molecular C-H⋯S inter-action generates an S(6) ring motif. In the crystal, mol-ecules are stacked into columns along the b axis by π-π inter-actions with centroid-centroid distances of 3.6495 (7)-3.9546 (8) Å.
authors.forename: Hoong-Kun
authors.initials: HK
authors.lastname: Fun
authors.forename: Suchada
authors.initials: S
authors.lastname: Chantrapromma
authors.forename: Hatem A
authors.initials: HA
authors.lastname: Abdel-Aziz