Abstract
In the title compound, C20H16O4S, the thiophene ring makes dihedral angles of 72.9 (2) and 60.5 (2)°, respectively, with the dimethoxy benzene and phenyl rings. In the crystal, C—H⋯O hydrogen bonds link the molecules into a C(9) chain along the b axis. The S and C atoms of the thiophene ring are disordered over two sets of sites [site occupancies = 0.675 (3) and 0.325 (3)]. A short intermolecular S⋯O contact [3.084 (2) Å] is observed in the crystal structure, which also features C—H⋯π interactions.
Highlights
In the title compound, C20H16O4S, the thiophene ring makes dihedral angles of 72.9 (2) and 60.5 (2), respectively, with the dimethoxy benzene and phenyl rings
The S and C atoms of the thiophene ring are disordered over two sets of sites [site occupancies = 0.675 (3) and
The atoms C18 and S1 of the thiophene ring are disordered over two positions [site occupancies = 0.648 (2) and 0.352 (2)]
Summary
Key indicators: single-crystal X-ray study; T = 293 K; mean (C–C) = 0.002 Å; disorder in main residue; R factor = 0.040; wR factor = 0.107; data-to-parameter ratio = 18.9. Cg2 is the centroid of the C17/C19/C20/S10 /C180 ring. C20H16O4S, the thiophene ring makes dihedral angles of 72.9 (2) and 60.5 (2) , respectively, with the dimethoxy benzene and phenyl rings. C—H O hydrogen bonds link the molecules into a C(9) chain along the b axis. The S and C atoms of the thiophene ring are disordered over two sets of sites [site occupancies = 0.675 (3) and. The authors thank Dr Babu Varghese, SAIF, IIT, Chennai, India, for the data collection
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