Crystal structure of a new polymorph of di(thiophen-3-yl) ketone

Abstract

The crystal structure of the title compound, C9H6OS2, represents a new polymorph. The crystal structure was solved in the orthorhombic space group Pbcn with one half of the molecule in the asymmetric unit. The thiophene rings are perfectly planar and twisted with respect to each other, showing the molecule to be in an S,O-trans/S,O-trans conformation. In the crystal, C—H...O hydrogen bonds connect the molecules into layers extending parallel to the ab plane. The crystal structure also features π–π interactions.

Keywords

• crystal structure
• di(thiophen-3-yl) ketone
• polymorphism
• C—H...O hydrogen bonding
• C—H...π interaction