Synthesis and structure investigation of new complexes of silver nanoparticles with -(4-fluorophenyl) diazen-1-yl) benzene-1,2,3-triol and cetylmetylammonium bromide

Novel binary (Ag/R) and ternary (Ag/R/CTAB) complexes were prepared using eco-friendly synthesized silver nanoparticles (AgNPs), an azo derivative ligand—4-(2-(4-fluorophenyl) diazen-1-yl) benzene-1,2,3-triol (R) and cetyltrimethylammonium bromide (CTAB). XRD analysis revealed the formation of a crystal structure in both binary and ternary complexes. In the binary complex, the main diffraction peaks were observed at 19.42°, 38.08°, 44.24°, 64.42°, 77.28° and 81.46°. In the ternary complex, peaks were recorded at 21.39°, 30.82° and 44.36°. UV-vis analyses showed significant shifts in the absorption bands, which indicate that the electronic transitions changed during the formation of the complexes. The main peaks of the R reagent were observed at 216, 365 and 432 nm, and after combining with Ag, these values ​​changed to 201, 276 and 416 nm. When CTAB was added, peaks were recorded at 207, 237 and 276 nm. IR results showed the main functional groups involved in the structure of the complex. Vibrations related to O-H, C=O and Ar-N=N-Ar groups were clearly observed in the spectra. In addition, the formation of Ag-O bonds was confirmed in the region between 570, 544 and 515 cm⁻¹. Overall, the obtained results indicate that both binary and ternary complexes were successfully synthesized and that they are structurally stable