ABSTRACT The newly synthesized hydrazone derivative: 2-[(2E)-2-(3-chloro-2-fluorobenzylidene)hydrazinyl] pyridine was synthesized. The characterization of the title compound was carried out by elemental analysis, FT-IR, 1H-NMR, 13C-NMR and UV–VIS measurements. The crystal structure was determined by the single crystal X-ray diffraction (XRD) method. In addition, the title compound was also subjected to its possible antioxidant activity with free radical scavenging ability of 2,2-diphenyl-1-picrylhydrazyl (DPPH) radicals using 3,5-di-tert-butyl-4-hydroxy-toluene (BHT) as standard antioxidant. The theoratical structural calculations were carried out by the density functional theory using the B3LYP method with 6-311++G(2d,2p) basis set. The theoretical and experimental results obtained were examined and compared.

中文翻译：

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2-[(2E)-2-(3-chloro-2-fluorobenzylidene)hydrazinyl]pyridine: 合成、光谱、结构特性、生物活性和理论分析

摘要 合成了新合成的腙衍生物：2-[(2E)-2-(3-氯-2-氟亚苄基)肼基]吡啶。通过元素分析、FT-IR、1H-NMR、13C-NMR和UV-VIS测量对标题化合物进行表征。晶体结构通过单晶X射线衍射(XRD)法测定。此外，标题化合物还通过使用 3,5-二-叔丁基-4-羟基-甲苯对 2,2-二苯基-1-苦基肼 (DPPH) 自由基的自由基清除能力进行了可能的抗氧化活性（ BHT) 作为标准抗氧化剂。理论结构计算通过密度泛函理论使用 B3LYP 方法与 6-311++G(2d,2p) 基组进行。对获得的理论和实验结果进行了检查和比较。