3,3'-Bis(octyloxy)-2,2'-bithiophene at 195 K

In the solid state, the title molecule, C24H38O2S2, possesses a crystallographic centre of symmetry. The bithiophene ring system is planar and the central C2-C2' bond length is 1.445(2) Angstrom. The O atom is within the thiophene mean plane and the torsion angles in the octyloxy chains are all trans, except for the angle around the first C-C bond which is gauche. The octyloxy chains are all parallel to one another and are aligned along the bisector of the ac face of the unit cell.