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A Flip-Disorder In The Structure Of 3-[2-(Anthracen-9-Yl)Ethenyl]Thiophene, Pawel Wagner, David L. Officer, Maciej Kubicki
A Flip-Disorder In The Structure Of 3-[2-(Anthracen-9-Yl)Ethenyl]Thiophene, Pawel Wagner, David L. Officer, Maciej Kubicki
Australian Institute for Innovative Materials - Papers
In the crystal structure of the title compound, C20H14S, the thiophene rings are disordered; such a flip-type disorder is typical for simple, monosubstituted thiophene derivatives. Two planar fragments, the thiophene and the anthracene units, are almost perpendicular in order to relieve the H⋯H steric strains. The crystal packing is determined by van der Waals interactions, π–π stacking between the anthracene fragments, and some weak C—H⋯S and C—H⋯π short directional contacts.
2,5-Bis(2-Cyano-2-Thienylvinyl)Thiophene, Pawel Wagner, David L. Officer, Maciej Kubicki
2,5-Bis(2-Cyano-2-Thienylvinyl)Thiophene, Pawel Wagner, David L. Officer, Maciej Kubicki
Australian Institute for Innovative Materials - Papers
In the crystal structure of the title compound, C18H10N2S3, the terminal thiophene rings are disordered. This disorder is of a flip-type and has been observed in some other thiophene derivatives. The molecule as a whole is approximately planar; the dihedral angle between the terminal five-membered rings is 6.0 (2)°. The crystal packing is determined by van der Waals interactions, π–π stair-like stacking between the thiophene rings, and some weak C—H⋯S and C—H⋯π short directional contacts.