Mol­ecular and crystal structure, Hirshfeld analysis and DFT investigation of 5-(furan-2-yl­methyl­idene)thia­zolo[3,4-a]benzimidazole-2-thione

The thia­zolo[3,4-a]benzimidazole fused-ring system in the title compound, C(14)H(8)N(2)OS(2), is nearly planar, the r.m.s. deviation being 0.0073 Å. The thia­zolo-benzimidazole-2-thione system is almost in the same plane as the furan-2-yl-methyl­ene moiety, with a dihedral angle of 5.6 (2)° between the two least-squares planes. In the crystal, adjacent mol­ecules are connected by weak inter­molecular inter­actions (C—H⋯N and slipped π–π stacking) into a three-dimensional network. The nature of the inter­molecular inter­actions was also qu­anti­fied by Hirshfeld surface analysis. DFT analysis indicates a good agreement of the experimentally determined and the theoretically calculated mol­ecular structures.