2000
DOI: 10.1145/570475.969783
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Abstract: Key indicators: single-crystal X-ray study; T = 296 K; mean (C-C) = 0.005 A ˚; R factor = 0.039; wR factor = 0.084; data-to-parameter ratio = 15.5. In the title compound, C 12 H 9 BrN 4 O, the N 0-methylidene-pyrazine-2-carbohydrazide and 4-bromobenzene groups are oriented at a dihedral angle of 10.57 (7). The hydrazide N-H group is involved in intramolecular N-HÁ Á ÁN interaction, which generates an S(5) motif. A short C-HÁ Á ÁO interaction is formed between the methylidene H atom and the carbonyl O atom. It…

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