2,3,5,6-Tetra­fluoro-1,4-bis­({[(5-methyl­thio­phen-2-yl)methyl­idene]amino}­meth­yl)benzene

The title compound, C₂₀H₁₆F₄N₂S₂, is a flexible bis­thio­phene-type Schiff base ligand with a perfluorinated backbone. The terminal thio­phene rings are almost normal to one another with a dihedral angle of 83.8 (2)°, and they are tilted to the central tetra­fluorinated benzene ring with dihedral angles of 61.2 (2) and 77.7 (1)°. In the crystal, there are π–π inter­actions involving the benzene ring and the thiophene ring of a symmetry-related molecule with a centroid–centroid separation of 3.699 (3) Å.

2,3,5,6-Tetra­fluoro-1,4-bis­({[(thio­phen-2-yl)methyl­idene]amino}­meth­yl)benzene

In the title compound, C₁₈H₁₂F₄N₂S₂, a bis-thio­phenyl Schiff base ligand with a perifluorinated aromatic core, the complete molecule is generated by crystallographic inversion symmetry. The thio­phene and tetra­fluorinated benzene rings are oriented at a dihedral angle of 77.38 (4)°. The crystal structure exhibits C—H...F hydrogen bonds, resulting in supra­molecular chains along the c-axis direction.