TY - JOUR ID - 3951 TI - Synthesis, characterization and spectroscopic properties of new azo dyes derived from aniline derivatives based on acetylacetone and azo-metal (II) complexes and singular value decomposition (SVD) investigation JO - Iranian chemical communication JA - ICC LA - en SN - 2423-4958 AU - Noroozi Pesyan, Nader AU - Gholsanamloo, Vali AU - Moradi Par, Maryam AU - Rashidnejad, Hamid AU - Gharib, Ali AU - Nejati, Kamelia AD - Faculty of Chemistry, Urmia University, 57159, Urmia, Iran AD - Faculty of Chemistry, Urmia University, 57159,Urmia, Iran AD - Department of Chemistry, Islamic Azad University, Mashhad, Iran AD - Department of Chemistry, Payame Noor University, PO.BOX 19395-3697 Tehran, Iran Y1 - 2019 PY - 2019 VL - 7 IS - Issue 1, pp. 1-89, Serial No. 22 SP - 71 EP - 89 KW - azo dye KW - sulfanilic acid KW - acetylacetone KW - bifurcated intramolecular H-bond KW - azo-metal (II) complex DO - 10.30473/icc.2019.3951 N2 - Four new azo-dyes, 3-phenyl azopentane-2,4-dion (LA), 3-(4-nitro phenyl azo)-pentane-2,4-dion (LP), 3-(2-nitro phenyl azo)-pentane-2,4-dion (LO) and 4-(1-acetyle-2-oxo-propyl azo)-benzene sulfonate sodium (LS), were synthesized from, aniline, 4-nitroaniline, 2-nitroaniline and sulfanilic acid with acetylacetone, respectively. Reaction of these new dyes with acetate salts of copper(II), nickel(II) and cobalt(II) in molar ratios of 1:2 were carried out to produce azo metal (II) complexes with the general stoichiometry; CuL2, CoL2 and NiL3 in complexes. Structure of azo dyes was characterized using FT-IR,1H NMR,13C NMR, UV-Visible and also the corresponding metal (II) complex were characterized by FT IR, UV-Visible and CHN and XRD analysis techniques. Elemental analysis and spectral data indicated that the dye as a ligand with two teeth, N and O, acts as a bidentate ligand. Differences in absorption maxima of azo ligands compared to those corresponding complexes were also studied. Also, in this work, singular value decomposition (SVD) as a chemometric method was used to determine the Cu(II), Co(II) and Ni(II) complexes with the mentioned ligands in methanol by UV-Vis spectrophotometry. SVD method confirmed the formation of CuL2, CoL2 and NiL3 complexes. UR - https://icc.journals.pnu.ac.ir/article_3951.html L1 - https://icc.journals.pnu.ac.ir/article_3951_f1ed75301ccbf498182b35a4e82a870f.pdf ER -