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(Z)-1-(2,5-Dichloro-3-thienyl)ethanone semicarbazone

By Hoong-Kun Fun, Ching Kheng Quah, A. M. Vijesh, Chitrakar Hegde and Arun M. Isloor


The title molecule, C7H7Cl2N3OS, is approximately planar [maximum deviation = 0.062 (1) Å]. Short intermolecular distances between the centroids of the five-membered rings [3.5340 (8) Å] indicate the existence of π–π interactions. An interesting feature of the crystal structure is the presence of short intramolecular Cl...N interactions [3.0015 (11) Å]. Molecules are linked via pairs of intermolecular N—H...O hydrogen bonds, generating R22(8) ring motifs. Furthermore, N—H...O hydrogen bonds form R21(7) ring motifs with C—H...O contacts, further consolidating the crystal structure. In the crystal, molecules are linked by these intermolecular interactions, forming chains along [001]

Topics: Chemistry, QD1-999, Science, Q, DOAJ:Chemistry (General), DOAJ:Chemistry
Publisher: International Union of Crystallography
Year: 2009
DOI identifier: 10.1107/S1600536809026567
OAI identifier:
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