Synthesis, Identification and Latent Fingerprint Study of Azo Dye Based on N,N-Dimethyl-p-phenylenediamine and Hydroxyquinoline and Its Palladium Complex | ||||
| Journal of Bioscience and Applied Research | ||||
| Articles in Press, Accepted Manuscript, Available Online from 31 July 2025 | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jbaar.2025.389121.1210 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
ahmed b mahdi  1; Faiq F. Karam1; Hasan Shamran Mohammed2
| ||||
| 11Chemistry department, Science college, University of Al-Qadisiyah, Iraq | ||||
| 2Chemistry department, Science college, University of Al-Qadisiyah, Iraq | ||||
| Abstract | ||||
| The compounds of 8-hydroxyquinoline, azo dyes, and their complexes constitute a significant family of chemicals with exceptional medicinal uses. The aim of the current research was to synthesise and examine an azo dye ligand, specifically (E)-5-((4-(dimethylamino)phenyl)diazenyl)quinolin-8-ol (DPDQ). This ligand was synthesised through a coupling reaction between the diazonium salt of 4-N,N-dimethylaniline and 8-hydroxyquinoline. Additionally, its palladium complex was formed by reacting PdCl2 with the synthesised DPDQ ligand. The synthesised compounds were characterised using several techniques, including Infrared spectroscopy, X-ray diffraction (XRD), mass spectrometry, proton nuclear magnetic resonance (¹H-NMR), UV-Vis spectroscopy, and elemental analysis. The IR data indicate bidentate azo ligand functions through the oxygen and nitrogen atoms in the azo group. The palladium compound is square-planar based on characterisation data. XRD measurements confirmed the nanoscale and crystalline characteristics of the synthesised substances. The DPDQ synthetic ligand and the palladium complex exhibited considerable efficacy as fingerprint detectors. Latent fingerprints can be accurately identified via the approved method. The powder technique demonstrated selectivity and excellent precision. The detection method for latent fingerprints is essential in criminal investigations, especially for suspect identification. | ||||
| Keywords | ||||
| Azo dye; fingerprint; N; N-Dimethyl-p-phenylenediamine; XRD | ||||
|
Statistics Article View: 57 |
||||
