فهرست نشریات علمی دسترسی آزاد ایران

This study presents the synthesis of an azo-chalcone derivative obtained from 4-aminoacetophenone, 6-bromo-2-naphthol, and cinnamic aldehyde, designated as BHND, together with its palladium nanocomplex. Structural characterization was carried out using a range of techniques including X-ray diffraction (XRD), elemental chemical analysis, molar conductivity, electronic spectroscopy, infrared (IR) spectroscopy, and ^1H-NMR spectroscopy. The dyeing resistance of both the ligand and its palladium complex was examined on wool and polyamide fibers, revealing promising fastness properties. The synthetic route involved the condensation of 4-aminoacetophenone with benzaldehyde to yield a chalcone, which was subsequently converted into a diazonium salt, coupled with chalcones, and then reacted with thiobarbituric acid to afford the target azo-chalcone dye. The synthesized compounds demonstrated strong stability and excellent performance on multiple surfaces, showing higher efficiency than the conventional black powder method used for latent fingerprint detection. In addition, the palladium nanocomplex exhibited desirable crystalline nanomaterial features, highlighting its potential applications in dyeing, forensic science, and nanomaterials research