Structural elucidation and Hirshfeld surface analysis of a fused thio-phene ester: methyl 3-[(naphtho-[2,1-b]thio-phen-5-yl)meth-yl]-1-benzo-thio-phene-2-carboxyl-ate.

The title compound, C23H16O2S2, is a benzo[b]thio-phene-2-carboxyl-ate derivative and consists of naphtho-thio-phene and benzo-thio-phene moieties bridged by a methyl-ene group. The dihedral angle between the two aromatic ring systems is 88.5 (2)°. Intra-molecular C-H⋯O inter-actions generate an S(6) ring motif. The acetate group assumes an extended conformation. Weak C-H⋯π and π-π stacking inter-actions are present in the crystal structure, together with a short S⋯S inter-action of 3.77 (8) Å. A Hirshfeld surface analysis indicates that H⋯H inter-actions contribute the most to the crystal packing (34.9%).Please give email addresses for all authors.