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5-[(2-Hydro­xy­phenyl)­methyl­ene­amino]-1,3,4-thia­diazo­le-2(3H)-thione

✍ Scribed by Zhang, Yu-Xia

Publisher
International Union of Crystallography
Year
2003
Tongue
English
Weight
123 KB
Volume
59
Category
Article
ISSN
1600-5368

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✦ Synopsis

The title compound, C 9 H 7 N 3 OS 2 , is essentially planar and features an intramolecular OÐHÁ Á ÁN interaction. Centrosymmetrically related molecules associate via NÐHÁ Á ÁS contacts.

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The title compound (PBT), C 14 H 14 N 4 S 4 , possesses C 2 symmetry, with the twofold axis bisecting the central benzene ring. The two terminal 2-(5-methyl-1,3,4-thiodiazolyl)thio groups adopt a trans conformation with respect to the benzene moiety, and the dihedral angle between the two thiodiazol

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The molecule of the title compound, C 18 H 15 NO 2 , is not completely planar. It adopts a keto±amine tautomeric form with an intramolecular NÐHÁ Á ÁO and an intermolecular OÐ HÁ Á ÁO hydrogen bond. The molecules are linked by OÐ HÁ Á ÁO hydrogen bonds into a three-dimensional network.

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The crystal structure of the title compound, C 8 H 7 N 3 S, previously determined at room temperature [Ishankhodzhaeva, Kadyrova, Surazhskaya, Parpiev & Koz'min (2001). Zh. Org. Khim, 37, 759±761], has been redetermined at 110 K. Comparison of the two structures reveals signi®cant differences in the

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