Benzo[4,5]imidazo[2,1- b ]thiazole-2-carbaldehyde

Abstract

The title compound, C 10 H 6 N 2 OS, is planar, with an r.m.s. deviation of 0.021 Å for the non-H atoms. In the crystal, molecules are linked via a pair of C—H...O hydrogen bonds, forming inversion dimers with an R 2 2 (6) ring motif. The molecules stack up the c axis and are linked by offset π–π interactions [shortest inter-centroid distance = 3.647 (2) Å], forming undulating layers parallel to (100).