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- W2117745958 abstract "A new chelating ligand, 5,5-dimethyl-2-(2-(3-nitrophenyl) hydrazono)cyclohexane-1,3-dione (L), and four transition metal com- plexes were synthesized. The ligand and its complexes were character- ized by IR, 1 H and 13 C-NMR spectra, elemental analyses, magnetic sus- ceptibility, mass spectra, UV-Vis. and thermogravimetry-differential thermal analysis (TGA-DTA). The metal complexes showed different geometric structures. Antibacterial tests of the ligand and complexes were also done. The Zn(II) complexes showed antibacterial activity against Staphylococcus aureus ATCC-25923 at middle level. The opti- cal properties of the ligand and its complexes were extensively investi- gated by optical measurements. The average transmittance value of the ligand was the highest value, while the average transmittance value of the (CuL2(NO3)2)·6H2O complex was the lowest value. The optical band gap of the ligand, ((Zn)2L(OH)4)·2DMF, (ZnL(NO3)2(H2O)2)·5H2O, (CuL2(OAc))·OAc·3.5H2O and (CuL2(NO3)2)·6H2O complexes were calculated and 3.121 eV, 2.180 eV, 1.551 eV, 2.489 eV and 1.556 eV values were found, respectively. The complexes decreased the optical band gap of the ligand. The optical band gap value of the (ZnL(NO3)2(H2O)2)·5H2O complex is the lowest value. The optical band gap value of the ligand is the highest value. The complexes de- crease the angle of incidence of the ligand, while complexes increase the angle of refraction of the ligand. The electric susceptibility of the" @default.
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- W2117745958 date "2014-03-01" @default.
- W2117745958 modified "2023-10-16" @default.
- W2117745958 title "Study of Structure and Spectral Characteristics of the Zinc(II) and Copper(II) Complexes With 5,5-Dimethyl-2-(2-(3-nitrophenyl) hydrazono)cyclohexane-1,3-dione and Their Effects on Optical Properties and the Developing of the Energy Band Gap and Investigation of Antibacterial Activity" @default.
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