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Diethyl 2,5-bis[(E)-thiophen-2-ylmethyleneamino]thiophene-3,4-dicarboxylate

✍ Scribed by Dufresne, Stéphane ;Bourgeaux, Marie ;Skene, W. G.

Publisher: International Union of Crystallography
Year: 2006
Tongue: English
Weight: 327 KB
Volume: 62
Category: Article
ISSN: 1600-5368
DOI: 10.1107/s1600536806046915

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✦ Synopsis

In the molecule of the highly conjugated title compound, C 20 H 18 N 2 O 4 S 3 , the thiophene rings are in an antiparallel arrangement and both azomethine bonds adopt the thermodynamically stable E isomeric form. The mean planes of the terminal thiophene rings are twisted by 9.04 (4) and 25.07 (6) from the mean plane of the azomethine groups and the central thiophene ring.

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✦ Synopsis

Diethyl 2,5-bis[(E)-thiophen-2-ylmethyleneamino]thiophene-3,4-dicarboxylate