Preparation, Spectral and Biological Studies of Azo Ligand Derived from Proline with Cu(II), Ag(I) and Au(III) Metal Ion

Abstract

In the present communication a synthesized ligand 4- [2-(1-methyl benzimidazolyl) azo] proline (MBP) was used to prepare three new complexes of Cu(II), Ag(I) and Au(III). The ligand and its complexes were characterized by elemental analysis (CHN), A.A, UV-Vis, FTIR and HNMR spectroscopy, magnetic susceptibility measurement, thermal analysis and molar conductivity measurement. Chloride ion content was also evaluated by Mohr method. The result was showed that the ligand was acted as N,N-bidentate. The preparation of the complexes was conducted after fixing the optimum concentration and pH. UV-Vis spectra of these complex solutions were investigated studied for a range of pH (5-9) and concentration (1×10 -5 -3×10 -5 ) which obey Lampert-Beers Law. The stoichiometry of the complexes was deduced according to mole ratio and Job methods which were obtained from spectroscopic studies of the complex hassolutions. The ratio of metal: ligand have been obtained was (1:2) for Cu(II) and Ag(I) complexes while Au(III) complex has (1:1)mole ratio. The antibacterial activates and dyeing achievement for the ligand and its complexes were test.

Clinical-Reported Outcomes Of Deferoxamine Versus Deferasirox In The Treatment Of Homozygous BetaThalassemia

“…Uv-Vis spectrum of free ligand (DPIDA) show up three bands at 284, 257, 238 nm which attributed to (ππ*) transitions of aromatic rings which shifted to higher wavelengths with little changes of values in complexes spectrums , while the bands at 466 nm of (n-π*) transitions that exhibited redshift in the ranges of complexes as a result of charge transfer transitions after coordination as shown in Table 2 . of imidazole ring at (3400) cm − (Abbas and Kadhim, 2016)two peeks at (3034) and ( 3061) cm-due to the vibrations of aromatic v(C-H) , and one peak at (2991) cm-of aliphatic v(C-H) that showed no signi icant changes in the spectra of the complexes frequencies. The peaks at (1588) cm-and (1315) cm-exhibited a stretching of v(C=N) and v(C-N) (Al-Hasani and Almaliky, 2015) respectively of imidazole ring that proceed a changing in position and intensity in complexes which is an indicate the participation of (N3) atom in coordination, also the values of v(N=N) (Jarad et al, 2018); (Slassi et al, 2019b) peak at (1498) cm-shifted to lower values in the complexes that's considered as an evidence on coordination proceed through one nitrogen atom of azo group, new values of v(M-N) frequencies appeared between (543 -511) cm − in the complexes that consider as additional evidence on coordination process as shown inTable 3 andFigures 4, 5 and 6.…”

Synthesis, Characterization and Staining Ability of Novel Azo Dye Based on Curcumin and Its Au(III) Complex

“…The Au(III) complex spectrum exhibited bands at 386 and 513 nm due to 1 A 1g → 1 E g and 1 A 1g → 1 A 2g transitions, respectively. These bands represent pretty accurately the square planar shape of the Au(III) ion, and the band at 263 nm is an electronic transition due to the ligand [23].…”

Synthesis, characterization, industrial and biological application of Co(II),Ni(II),Cu(II) and Zn(II) complexes with azo ligand derived from metoclopramide hydrochloride and 3,5-dimethylphenol

“…Standard solutions for metal salts were maded in changing condensation (10-5-10-3 M/L) in pH average (4)(5)(6)(7)(8)(9). On the same time a bulk of ethanolic solutions for ligand during the extent for condensations (10-5-10-3 M/L) has been and produced.…”

“…Because of exhibit biological and medicinal importance, azo compounds are application for biocidal treatment of textile materials and their application, such as antiseptics, antineoplastics, antidiabetics and antitumor (2,3). Azo compounds have been formed five or six membered loop while other coordination site on ortho position due into stable metal chelates (4). Many application of azo dyes such as, chemistry, pharmaceutical and radiochemical industry, these azo dyes are used complexing and pharmaceutical agent for many of metal ions (5,6).…”