The reactions of salicylaldehyde and benzoic aldehyde with 5-(2-aminophenyl)-3-pyridyl-1H-1,2,4-triazoles were studied. The reaction products are 5-phenyl-2-pyridyl-5,6-dihydro[1,2,4]triazolo[1,5-c]quinazolines. The structures of the synthesized compounds were determined by IR spectroscopy and 1H and 13C NMR spectroscopy. The luminescence properties of solutions and solid samples were studied.

中文翻译：

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5-苯基-2-吡啶基-5,6-二氢[1,2,4]三唑并[1,5-c]喹唑啉的合成、结构和光致发光

研究了水杨醛和苯甲醛与 5-(2-氨基苯基)-3-吡啶基-1H-1,2,4-三唑的反应。反应产物是 5-苯基-2-吡啶基-5,6-二氢[1,2,4]三唑并[1,5-c]喹唑啉。合成化合物的结构由红外光谱和 1 H 和 13 C NMR 光谱确定。研究了溶液和固体样品的发光特性。