Synthesis, characterization and analytical study of new imine compounds

Authors

  • ناصر ثلاج جامعة الرشيد الخاصة

Abstract

Three compounds, 2,5-dimethyl-4-((4-nitrobenzylidene) amino) phenol (A1),N,N'-([1,1'-biphenyl]-4,4'-diyl)bis(1-(2,4-dimethoxyphenyl)methanimine (A2) and 4,4'-(([1,1'-biphenyl]-4,4'-diylbis(azaneylylidene))bis (methaneylylidene))bis(2-methoxyphenol) (A3), were synthesized and characterized using mass spectrometry, 1H-NMR spectroscopy, and IR spectroscopy. Then, the effects of solvents and pH on the UV-Visible spectrum of these compounds were studied. With the change of the used solvent, the spectra of A3 and A2 had additional absorption bands appeared around 360-370nm using solvents such as methanol and DMSO. The results of pH effects on  the synthesized compound spectra in a group of buffer solutions showed that the spectrum of (A1) and (A2) were not affected by the change in pH medium, while the compound (A3) showed a significant change in both Acidic and basic medium. The ionization constants for (A3) were calculated using the half-height method. An equilibrium diagram was proposed to demonstrate the ionization of (A3).

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Published

2022-06-16

How to Cite

1.
ثلاج ن. Synthesis, characterization and analytical study of new imine compounds. Tuj-hlth [Internet]. 2022Jun.16 [cited 2025Jul.8];44(2):87-105. Available from: http://www.journal.tishreen.edu.sy/index.php/hlthscnc/article/view/11781

Issue

Vol. 44 No. 2 (2022): Tishreen University Journal for Research and Scientific Studies - Health Sciences Series

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Articles

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