A wide range of 1,10-phenanthroline-2,9-dicarboxylic acid diamides was synthesized, differing in the structure of substituents in the amide function and in the nature of substituents at positions 4 and 7 of the heteroaromatic ring. All new compounds were characterized by NMR, IR spectroscopy, and high resolution mass spectrometry. The molecular structure of one of the ligands was unambiguously confirmed by X-ray diffraction analysis. The solubility of all the obtained compounds in 3-nitrobenzotrifluoride was quantitatively evaluated.

中文翻译：

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1,10-菲咯啉-2,9-二羧酸二酰胺：合成、结构和溶解度

合成了多种 1,10-phenanthroline-2,9-dicarboxylic acid acid diamides，它们在酰胺功能中的取代基结构以及杂芳环 4 和 7 位取代基的性质不同。所有新化合物均通过核磁共振、红外光谱和高分辨率质谱进行了表征。其中一种配体的分子结构已通过 X 射线衍射分析得到明确证实。定量评价所有获得的化合物在3-硝基三氟甲苯中的溶解度。