Synthesis and Characterization and Study of the Biological Activity of Some New Metal Complexes of 2-Hydroxy Benzyledene-5-(2-Acetyloxyphenyl)-1,3,4- Thiadiazole.

Majeed, Ahmed

doi:10.22401/jnus.11.1.04

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2013

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“…In Ni(II), d - d electronic transition appeared at 620 nm assigned to the 3 T 1(F) → 3 T 1(P) and 3 T 1(F) → 3 A 2(F) transition, respectively ( Greenwood and Earnshaw, 2002), (Hassan et al, 2008). For Cu(II), the bands appeared at 280, 300, 312 and 451 nm were attributed to (π-π*), (n-π*), charge transfer and 2 T 2 → 2 E 2 respectively (Figgis, 2000), (Schönherr, 2004), (Majeed, 2008). …”

Section: Resultsmentioning

confidence: 99%

Synthesis and characterization of transition metal complexes of 4-Amino-5-pyridyl-4H-1,2,4-triazole-3-thiol

2013

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Series of coordination complexes of Ni(II), Cu(II), Zn(II), Cd(II) and Sn(II) metal with 4-amino-5-(pyridyl)-4H-1,2,4-triazole-3-thiol, as a ligand has been successfully prepared in alcoholic medium. The prepared complexes were characterized quantitatively and qualitatively by using: microelemental analysis, FTIR spectroscopy, UV-visible spectroscopy, 1H and 13C NMR, magnetic susceptibility and conductivity measurements. This triazole ligand act as bidentate that coordination to the metal ions through sulphur and amine group. According to the spectral data of the complexes a tetrahedral geometry was suggested for these complexes except Cu (II) complexes which exhibit a square structure.

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Section: Resultsmentioning

confidence: 99%