No abstract

The title compound, C16H9ClF2N4S, was prepared by the reaction of 4‐amino‐5‐mercapto‐3‐chloro­phenyl‐1,2,4‐triazole and 2‐bromo‐2′,4′‐fluoro­acetophenone. The six‐membered thia­diazine ring is distorted from planarity, with an r.m.s. deviation of 0.201 Å. All C and N atoms of the triazole ring are conjugated.

A series of novel 4-(arylmethylidene)amino-5-(2-ethoxyphenyl)-3-mercapto-4H-1,2,4-triazoles (2a-f) were easily synthesized in high yields by means of the reactions of 3-(2-ethoxyphenyl)-4-amino-5-mercapto-4H-1,2,4-triazole (1) with various aromatic aldehydes. The compound, 4-(4-methylbenzylidene)-amino-5-(2-ethoxyphenyl)-3-mercapto-4H-1,2,4-triazole was investigated with X-ray crystallography.

Key indicatorsSingle-crystal X-ray study T = 298 K Mean (C-C) = 0.004 Å R factor = 0.069 wR factor = 0.162 Data-to-parameter ratio = 13.7For details of how these key indicators were automatically derived from the article, see

Key indicatorsSingle-crystal X-ray study T = 298 K Mean (C-C) = 0.003 Å R factor = 0.052 wR factor = 0.136 Data-to-parameter ratio = 13.4For details of how these key indicators were automatically derived from the article, see