Crystal structure and Hirshfeld surface analysis of dimethyl 40-bromo-3-oxo-5-(thiophen-2-yl)-3,4,5,6-tetrahydro-[1,10-biphenyl]-2,4-dicarboxylate

In the title compound, C20H17BrO5S, molecules are connected by intermolecular C—H S hydrogen bonds with R22(10) ring motifs, forming ribbons along the baxis direction. C—H interactions consolidate the ribbon structure while van der Waals forces between the ribbons ensure the cohesion of the crystal structure. According to a Hirshfeld surface analysis, H H (40.5%), O H/H O (27.0%), C H/H C (13.9%) and Br H/H Br (11.7%) interactions are the most significant contributors to the crystal packing. The thiophene ring and its adjacent dicarboxylate group and the three adjacent carbon atoms of the central hexene ring to which they are attached were refined as disordered over two sets of sites having occupancies of 0.8378 (15) and 0.1622 (15). The thiophene group is disordered by a rotation of 180 around one bond. © 2024 International Union of Crystallography. All rights reserved.