2,3,5,6-Tetrafluoro-1,4-bis({[(5-methylthiophen-2-yl)methylidene]amino}methyl)benzene
نویسندگان
چکیده
The title compound, C20H16F4N2S2, is a flexible bis-thio-phene-type Schiff base ligand with a perfluorinated backbone. The terminal thio-phene rings are almost normal to one another with a dihedral angle of 83.8 (2)°, and they are tilted to the central tetra-fluorinated benzene ring with dihedral angles of 61.2 (2) and 77.7 (1)°. In the crystal, there are π-π inter-actions involving the benzene ring and the thiophene ring of a symmetry-related molecule with a centroid-centroid separation of 3.699 (3) Å.
منابع مشابه
2,3,5,6-Tetrafluoro-1,4-bis({[(thiophen-2-yl)methylidene]amino}methyl)benzene
In the title compound, C18H12F4N2S2, a bis-thio-phenyl Schiff base ligand with a perifluorinated aromatic core, the complete molecule is generated by crystallographic inversion symmetry. The thio-phene and tetra-fluorinated benzene rings are oriented at a dihedral angle of 77.38 (4)°. The crystal structure exhibits C-H⋯F hydrogen bonds, resulting in supra-molecular chains along the c-axis direc...
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In the crystal structure of the title compound, C29H8F16I4O4, short I⋯I and I⋯F contacts, which can be understood as halogen bonds (XBs), represent the strongest inter-molecular inter-actions, consistent with the presence of I and F atoms, and the absence of H atoms, at the periphery of the mol-ecule. In addition, π-π stacking inter-actions between tetra-fluoro-iodo-phenyl (TFIP) groups and fiv...
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