Crystal structure and Hirshfeld surface analysis of 3-benzyl-2-[bis(1H-pyrrol-2-yl)methyl]thiophene

In the title compound, C20H18N2S, the asymmetric unit comprises two similar molecules (A and B). In molecule A, the central thiophene ring makes dihedral angles of 89.96 (12) and 57.39 (13)degrees with the 1H-pyrrole rings, which are bent at 83.22 (14)degrees relative to each other, and makes an angle of 85.98 (11)degrees with the phenyl ring. In molecule B, the corresponding dihedral angles are 89.49 (13), 54.64 (12)degrees, 83.62 (14)degrees and 85.67 (11)degrees, respectively. In the crystal, molecular pairs are bonded to each other by N-H center dot center dot center dot N interactions. N-H center dot center dot center dot pi and C-H center dot center dot center dot pi interactions further connect the molecules, forming a three-dimensional network. A Hirshfeld surface analysis indicates that H center dot center dot center dot H (57.1% for molecule A; 57.3% for molecule B), C center dot center dot center dot H/H center dot center dot center dot C (30.7% for molecules A and B) and S center dot center dot center dot H/H center dot center dot center dot S (6.2% for molecule A; 6.4% for molecule B) interactions are the most important contributors to the crystal packing.